14 spam discussions in a row (and I'm afraid that this is the 15th). I have nothing to say, I'm speechless.
Duolingo has never been that spammy.
It has been more "spammy" on numerous occasions. But the posts were quickly removed by a mod, so you never saw them.
There just doesn't seem to be a mod around at the moment.
I've just noticed that, and actually it's 16 (in the English section).
It's so annoying.
I think it's probably because a large portion of the mods are either in Berlin or on their way. Hopefully it will clear up over the weekend!
Either it is spam or haters. If it be a hater, downvote everything they do and block them. My suggestions.