Curiously, I found a Hero member (gembira and a Sr. Member (kojektea) among the ones which posted there... I'm not sure if they were involved also in the ANN buimping operation or if it just happened for them to post as well... What do you think?
I must admit that I haven't noticed Gembira being unusually active, but I saw Kojektea many times before in various ANN thread. In my opinion that user is simply very active in altcoin board, so chances are his name will appear in those that hired bumping services too. On the other hand, I wouldn't be surprised if there is a group of high ranked accounts doing the same thing, but on a bit higher level, not spamming one liners, and not writing too often, making it very hard to identify.Regarding the Winz.io thread - man, but this one is huge! It has 36 pages... I just started reporting the spam, but I'm not sure when I'll finish though...
Yeah that one is big, as they worked there for a couple of months without being noticed. It;s no hurry though, as I can see they stopped with that now since they are tagged and Winz.io probably told them to stop as it doesn't look when you have bunch of tagged accounts writing on the thread.Prior seeing these two ANN threads posted by you, an idea crossed my mind: to double check the 74 topics mentioned by you on the first page of the topic, in order to see if more spam occurred after the posts were listed.
I do that from time to time, mostly to identify new ANN threads, as usually they use same accounts. Unless they get tagged, in that case they just ditch them and start using new ones and we know that's not a problem as they have unlimited supply of newbie accounts. It will be a huge work, but I hope that by next week to finish. Wish me luck 
Good luck! 