That way users can be a bit more expressive without the word-barf walls of text which make Facebook, Tumblr, and other social platforms a nightmare to read through.
@Yes, @something @like @that @might @prove @quite @funny.
Right now, there's a real benefit to having short Twitter handles, because they count less against the limit (longer ones really add up in Twitter conversations that involve multiple people).
I understand why usernames count towards the limit, but I wish they didn't.
While you are at it, urls cost you 5. Images cost you 10.
Removes the benefit of shorter twitter handles, longer twitter handles doesn't fuck up what you are trying to say and, you can talk to multiple people in the same tweet.
However, I feel like it would be weird for people to adopt, and probably put people off of Twitter, since paying attention to a 1-1 limit is annoying enough.