When I write @tln or [TLN] or [tln] it is automagically saved as [TheLongHBUserName] and links to her/his user page.-- pashute, Nov 04 2015 [-] 99.9% of the time when I write [pashute] it's a response to a post or annotation... which already has a link to your account page on it.
Like so (see below)-- FlyingToaster, Nov 04 2015 As on reddit, where referring to another user with the format "/u/usernamehere" creates a link and also notifies the user to the mention. It's a useful function. I don't see how the shortener bit could be made to work, though.-- tatterdemalion, Nov 04 2015 random, halfbakery