SirPrimalform: Sounds like they followed through on their threat if you contacted them again (which you did).
KabyLake: No, I did not. And even if I contacted them, why they are can deny my access to all my subscriptions? I disagree with that.
It's right there in the link you provided:
Message from Steam Support on Mar 23, 2018 @ 9:57am | 7 weeks ago
Next time you contact Valve in any form or venue about this account's Community Ban, we will follow through with Jared's previous warning to permanently deactivate your account.
Message from you on Mar 24, 2018 @ 8:58pm | 7 weeks ago
Hello Mara,
...
It's right there. You contacted them
the very next day and kept going.
What exactly did you do to get the community ban anyway? I sounds like you were exploiting some kind of loophole repeatedly.
EDIT: Ok, it was the moderator exploit followed by a ban circumvention.