@helene @suika There is not much pro to be enable per user, it would way more sane to have it enable for everybody
Proxy is a bit of a hack, it changes the location of the media(s) in the post to replace the remote instance by your instance

Let’s say you enable proxy later on your profile, Pleroma would have to change on the go (on everything in DB) all links of posts you would request, that’s just insane

dunno if my explanation is very clear (I’m a bit busy)