@benroyce @chocosoldier @blogdiva
I don't think that's the DM spam filter.
Mastodon.social will silence people on their server without your knowledge (or theirs), and if they ever reply to your post, it'll show up like that -- lumped in with DM spam.
But unlike DM spam, there's no switch to turn it off, and your server doesn't really even tell you why it's happening.
I recognize this issue because I've experienced it myself.