Some "hazelmark" promoting coupon codes: https://www.gog.com/forum/general/this_right_here_is_the_scariest_halloween_costume_ever/post13

New zero-games account promoting some MOBA: Rustom786 https://www.gog.com/forum/general/i_tried_this_new_game_its_interesting_archwar_heroes_and_demons

Spammer : https://www.gog.com/forum/general/release_afterparty_94e3a/post16

Spambot jimsmiths on a news thread: https://www.gog.com/forum/general/release_disc_room_74559/post6

Spammer Awadhesh_Kumar resurrecting an old thread by copy-pasting post #1: https://www.gog.com/forum/general/deleting_my_account/post8

Spammer RichardSmithe resurrecting a 2018 news thread with generic "Thanks for the information" post: https://www.gog.com/forum/general/black_friday_and_cyber_monday_bring_big_deals_to_gogcom_40e0d/post252

FORUM ON FIRE HELP, THIS SECTION GENERAL

He is really evil. He is telling us to GO TO WORK...

Noooooooooo. Please noooooo. anything but that so long as I get moneys :D /jk

links:

https://www.gog.com/forum/general/nf_go_to_work_sinbam1_c_o_m_kangnam_op_ilsan_op_deajen_op_jeju_op

https://www.gog.com/forum/general/choice_good_daegu_op_sinbam1_c_o_m_deajen_op_jeju_op_great_hope_makes_gr
(great hope makes green-groceries? groundhogs?)

https://www.gog.com/forum/general/go_to_the_sinbam1com_kangnam_op_ilsan_op_labour_aonquers_all_things
(is he a commie? or a brit? either way, the word begins with a "c", not an "a".)

https://www.gog.com/forum/general/op_site_sinbam_net_suwon_op_kangwon_op_op_site_op_op_op_op_op_op
(literally no comment here; this post is too OP.)

https://www.gog.com/forum/general/op_site_n_sinbam1_c_o_m_n_deajen_op_jeju_op_you_should_want_whatever_happens_to_you
(now he's just fatalistic, pessimistic, and depressing)

https://www.gog.com/forum/general/op_daejang_sinbam_n_e_t_suwon_op_kangwon_opwell_done_is_b
(well done is bad for you? if it's a steak under discussion, i kinda disagree. Well done is better for you? if it's poultry, he is correct....)

https://www.gog.com/forum/general/go_to_the_sinbam1com_kangnam_op_ilsan_op_labour_aonquers_all_things_1
(This one is truly low-effort and low-quality. Now he's just repeating himself.)

Spammer :

https://www.gog.com/u/ClingWinFreeLotto

Posts mentioning J*y*share:

https://www.gog.com/forum/general/recording_games/post23
https://www.gog.com/forum/general/what_do_you_use_to_download_youtube_videos/post35
https://www.gog.com/forum/general/how_to_recover_deleted_files/post46
https://www.gog.com/forum/general/recording_gog_dosbox_games_using_obs_studio/post11
https://www.gog.com/forum/general/recording_gog_dosbox_games_using_obs_studio/post13 (some other video recording software)
https://www.gog.com/forum/general/back_to_school_sale_2018_tracking_thread/post135 (spam hidden under link)

Edit: and this one
https://www.gog.com/forum/blood_series/video_recording/post3

A*c*war spam:

https://www.gog.com/forum/general/the_v_forum_game/post336
https://www.gog.com/forum/general/i_tried_this_new_game_its_interesting_archwar_heroes_and_demons
https://www.gog.com/forum/general/looking_for_members_to_discuss_about_a_game
https://www.gog.com/forum/general/i_tried_this_new_game

More of the above:
https://www.gog.com/forum/general/review_about_the_game

And this political bait

And again ;)

https://www.gog.com/forum/general/review_about_my_favorite_game