I know what is this, it's the error 403, right? Or the error 429? Anyway, I got a way to get this error away from you. The technique: Disconnect to your DA without coming back on in until a certain time, maybe minutes, hours or days (I think it's enough with two days...). I thing it's because the system needs to know if all of your comments and reply says the same thing and should be reported as spam, but I already did this and I didn't get any problem and I don't have the error 403 anymore... But it can come back later...
Don't threaten me with a good time
Sorry Deviantart is giving you trouble as well. Hope this B.S. get situated real quick
Well that's odd, really hope it fixes itself.