You are being a bit over-sensitive probably due to overexposure of this type of stuff, but in the case of the site, it's likely it was just part of a package. I

You are being a bit over-sensitive probably due to overexposure of this type of stuff, but in the case of the site, it's likely it was just part of a package. I'm thinking you're referring to jQueryUI that is loaded up, and it looks like it's a "nuke for an anthill" situation, where there's likely something in the set of scripts that works for them. It's annoying, but it's probably nothing to get worked up over - they saw something they needed and went for it.