It’s indeed just the Mastodon-style Mentions that MBIN uses that cause a slight problem for PieFed. Nothing is being regex’d, so it’s just the specific use of the Mention type in the tag[] field which it’s picking up, which - as you say - wasn’t included in your comment.
Ah, thanks. I’ve edited my comment to correct it.
It’s indeed just the Mastodon-style Mentions that MBIN uses that cause a slight problem for PieFed. Nothing is being regex’d, so it’s just the specific use of the
Mentiontype in thetag[]field which it’s picking up, which - as you say - wasn’t included in your comment.