Am I the only person on there that gets supremely irritated when a guy mentions nothing but your looks in his first message, or "OH HAI LOOKS LOOKS LOOKS oh also you seem like ur cool" like, it's usually not even something specific, it's just "you're hot and you seem nice, lets chat." (Ugh, that phrase. Lets chat. No. No. Lets not.)
Back when I was on eharmony, guys seemed to actually put some consideration into writing an intro message. I don't know how hard it is to look through my profile for 20 seconds and comment specifically on something you liked, or think we have in common. Even "how was your weekend/school week/whatever?" is workable.