Generally I ask, "Why do social platforms like Bluesky still support DMs?" On any platform that has DMs you get messages from randos who say "Hey!" who, if you reply, seem to start qualifying you for a romance scam ("How old are you?")

I've been collecting "signatures of hostility" from Bluesky profiles and "No DMs" is one of the most common, common enough that my agent [1] and I don't see it as a "no follow" sign.

[1] Still unnamed since it is in pieces on the floor, it probably gets named after a Tsunako character. KUrUMi?