So, not sure if I am completely off base here, but I had this odd thing happen today where I couldn't post an URL because whenever I did, part of it would be replaced with the text removed. You can see what I am talking about in the screenshot, and I am linking my comment below. Another commenter replied saying it was likely something related to a slur filter in my instance, so I am coming here for help to understand the issue. Sorry if this is completely wrong, I am not very well versed in the workings of the fediverse and different instance implementations. Here's the comment:

https://lemmy.world/comment/10534403

EDIT: if it matters, I am using the Boost for Lemmy android client