In the past, my experience with /int/ boards has been less than stellar. 4chan's /int/ is trash, 8chan's /int/ is very similar to 4chan's. 76chan's /int/ isn't trash, but it is riddled with shitposting.
If we do implement /int/, it won't allow shitposting. Since that'll be the case, it won't really increase traffic because most people go to /int/ to shitpost. I'm not saying the board idea won't be on /p/ in a few months, but I'm saying that it would be a vastly different /int/ than you probably have imagined.