This looks like a bot bumping services, even if the accounts are nuked and the post's are deleted, more army will come to bump the thread. I have also seen many other projects using such, small and unwanted comments to bump there thread in the announcement section, which is pretty hard to tackle for a normal user. And yes, of course they are a scam project.
I think we could kill it by deleting the whole fucking ANN thread, so that the bots could not get a place to lay there eggs. BTW, I have reported the main post.