[quote=@Yankee]
I believe this is due to the anti-spam measures taken/reinstated to try and control the bot situation as it was getting pretty bad. Fortunately I also believe it's an easy fix to unban them, [@LegendBegins]?
[/quote]

Kuro is correct, we enabled an aggressive anti-spam measure and some benign accounts got caught in the crossfire. All should be sorted.