Lol, wtf does this even mean? Opinions are ideas. Ideas can be flat out wrong, laughably retarded, etc.
So I can't have an opinion that someone's (your) opinion is dumb?
Ok, it is my opinion that your IQ is probably below 95, and you probably smell like multiple buttholes. You aren't allowed to think this is dumb, it's just my opinion man. Respekt.
It appears that your jimmies are slightly rustled.
If you can't play with the big dogs, then stay on the porch, pops.