Arguably this is a case of providing better user education, but I am having a difficult time informing users on our install that they should generally write T123 instead of https://phabricator.example.com/T123, mainly because the former will generate mentions. My current attempts to educate our users has involved emails explaining some of the best practises for using Phabricator, but I often find that these emails go unread. I've been considering some more aggressive strategies, such as:

1. Somehow warning users when they do this... either preventing it outright or popping up some kind of "did you mean ..." modal dialog. This solution is quite intrusive, and I'd prefer to not have to do this.
2. Allowing Remarkup to render https://phabricator.example.com/T123 equivalently to T123. I think that there may have been some discussion on this previously.
3. Possibly some other less-obtrusive methods.