I do.  They want to own the "@" symbol.  And at:// is the scheme that they want, which the IETF is not too happy about.  Obviously they are quite late to that party, so it can only end up as a mess.  A Bold Protocol.   

 What do you mean by saying they want “at://“? 

 They want that to be the name of their protocol scheme.  Like http:// and they are trying to register that at the IETF who manages these things. 

 Ok go it. So they’re looking for at://user.bsky.com to go directly to that users profile 

 I think they did it because the double-@ on Mastodon is "confusing" 

 if they copied the scheme that the fediverse uses it would have just caused more confusion. they can be speshul and have their own scheme that nobody else uses.