Question to all Ruby and ToR programmers. What do you hate in Ruby/RoR?

I don't know why Ruby is not Popular and didn't hear about problem with this lang.

Ruby is a popular language, not as much as other languages but it certainly is. Personally I haven't faced anytging that would make me say "Fuck this shit" everybody always complain about scalability issues with Rails but since I haven't built something with much traffic I haven't said say this yet; Ruby is a beautiful languages and gives a lot of flexibility when working with it.

That's the point i never heard anybody who said that Ruby sucks or sth

And at this point i think that Ruby might be the best programming language, but people just don't use it