Let me thank you for your thorough and thoughtful answer to my question.
RafaelRamus: Wow! I wasn't expecting to see this type of discussion being developed here at all!
As much as I appreciate such profound debate, for the sake of simplicity I'm going to focus on your last question:
"Is it really necessary to attack one, while willing to defend the other, why?" You can never know which direction a discussion is going to take, and I was equally surprised to see someone bringing neurobiology up as you did. It's refreshing to see that it is possible, because its also part of the wider discussion and unresolved questions.
RafaelRamus: I'm not willing to defend either one, I'm in favor of the site giving tools for people to block such content if they so desire, and even better, to have tools tailored for parents that are willing to put the effort to provide a nice gaming environment for the entire family - which is something that Steam does and GoG doesn't.
I would welcome a
universal hiding function because it isn't
just about such content. I'm using my ad-blocker to do it, and my blocking list contains north of 1500 titles of all genres and it consists of all types of old and brand-new games/VN alike.
Having the means to hide any such content a person doesn't like, or unhide it at some later date, because preferences and interests are bound to change over time, and because experience shows that using tags, let's say NSFW, which is by the way the only one not also filtering out other titles a person would normally consume based on their preferences and interests, would dramatically improve the overall shopping experience.
While St. Elsewhere's hiding option is truly convenient, it is also far from perfect. Individual items can be hidden while the same isn't possible with collections. In addition, they are also offering a host of options, allowing their customers to control what's getting displayed on their main pages and store browser, thus making it a safe experience as far as that's possible.
A hiding option is only half the rent, though, considering the presence of sales, promo, and release topics can be viewed on the general forums, regardless of age, and despite opting to hide games/VN, which is in itself only possible in the store browser, while the main page remains unaffected. I'm disregarding that there are also ways to hide content on the forum, in lieu of an official ignore function allowing it.
On the other hand, it would be easier to also hide topics promoting pornographic/sexual games/VN or special events which are targets for ideological clashes, ad hominem attacks, accusations, and thus hindering and preventing reasonable discussions and exchanging opposing views from the get-go, more than allowing for them to happen, because it is then only a matter of checking what's on a person's ignore list and filtering such topics out. If someone still barges in to cause unrest, they can quickly be dealt with by moderators, and discussions brought back on topic.
RafaelRamus: Regarding what studies I'm referring to, I was being a lot less philosophical and was thinking more in the terms of Neurobiology of Compulsive Sexual Behavior (Kraus et al) which points to problems related to internet pornography being a real thing. As far as I know, the only debate in the field is if the problems people report related to porn should be classified as pertaining to a real addiction or if it "only" relates to an impulsive disorder (whereas it's way less common for people to report such problems because they are addicted to violent movies or games).
I see, yes. I agree that porn consumption is a relevant factor and it can have a potentially negative impact - if only, and preferably, this individual. So while addiction, obsessive, and compulsory behaviour can be a potential risk factor, in relation to GOG there is little to worry about. Here we have a baseline protection (virtual curtain), and inoffensive screenshots for explicit novels and games, which under ordinary circumstances should be more than enough. GOG can't prevent addictive behaviour or excessive consumption. That's not their duty and they don't know who their customers really are - and by extension, what their psychological makeup is looking like. Even though they are likely able to deduce it to a minor degree from analysing any personal and tracking data they are collecting - and selling (All I say is giveaways and competitions *cough*).
RafaelRamus: Again, I personally prefer to avoid both as much as possible, but that's a preference (which again leads me back to my point: the problem is not GoG having this kind of content on the site, the problem is not giving people tools to filter this kind of content).
That's fair and I'm in full support of it, because it should be
your decision what you'd like to view and likely purchase, not GOG's. And whatever you - or anyone - is hiding, and why, is
your business. You are not taking away something from anybody else or violating anybody's rights by doing it. That isn't universally true, because a line can be drawn, connecting the ability to hide titles from the store to modding out content from games, which some individuals consider to be a crime and violation of their rights, and people asking for and using such are considered to be the worst examples humankind has ever brought forth...
I have no words for that...