There are several threads created by other members, about them one of them is in the
meta and if you see from BPIP all these accounts have been blocked, the mod responds quickly about the Spamming.
OP, for that if you see anything suspicious like that, you can quickly report it to the mod and it will also be cleaned quickly, I think reporting the right steps at this time is the best.
So, maybe you can lock this topic, because the spam problem has been resolved, in the future don't forget to report it, it's very much appreciated and of good value.