cross-posted from: https://lemmy.world/post/30801261

I'm noticing a pattern starting to develop in the community I mod (just barely -- it's only happened 3 times so far) where a user that posts a fairly large amount of relevant content occasionally posts weird spam with a title of alternating letter nonsense (e.g. "zazaz" or "sdsdsds") and a link that goes to some random domain that serves nothing but a default 404 error (as in the domain is registered and there's a server responding to requests, but there's no content for it to serve).

I suppose it could just be bad behavior on the part of said users, but it feels more like a bug or their account getting hijacked or something. Anybody have any insight?