Why does no one like Colin and Dennis?

I find it kind of sad that no one really seems to like Colin and Dennis. I mean, I’ve seen Colin called the scrappy. Sure, he could have been developed more, in fact I think it would have been really nice if he and Dennis had, considering they could have easily proved to be loyal to Harry. Remember when they were trying to fix those “Potter Stinks” badges?

Also, on TV Tropes they aren’t listed as being “Moe” when they’re clearly designed to be this, yet Neville is.

” Neville himself. Between his wimpy, bullied, but plucky Woobie-ness and ButtMonkey-ness, he's every ounce a "Male Moe"”

I’ll probably get some flack for this but Neville has never been a favorite of mine. Yeah, he’s a well-written character and very likeable but he’s never been a favorite of mine, but that doesn’t stop the official section for him on the site saying “ and goes through a lot of great Character Development to become truly awesome”

Which just sounds like weasel wording and making people think they have to like him to be cool. But I’ve strayed from Colin and Dennis, so yeah.