Please introduce a limit on columns. It's just funny that you can add 100+ columns and display information on the last column... Yes, I tested it and it looks funny, but not practical for me.
It's not a bug - it's a FEATURE! :D
I don't think it matters that there is no limit. It's user controlled so if they break it - it's their fault.
Good testing though :) Edge cases are important to check.
