I don't know what you're butthurt about, but RTB4 is one of the most useful add-ons.
Having tried it myself, I can state that it's causing a lot of crashes, as well as that it doesn't really contribute any big new features except for switching to a private chat protocol with a friend roster, as well as that you have in-game access to the mod manager.
"Advantage" no. 1 isn't even an advantage since a lot of people are still on the old IRC network instead, as well as the fact of that the propretariary protocol isn't open for third-party clients.
There are third-party mods on RTB that do the same as advantage no. 2.