I think what he meant was dating sites suck if you're a man since: 1.) Men do all the chasing/initiating contact. 2.) Women get inundated with a lot of messages

I think what he meant was dating sites suck if you're a man since: 1.) Men do all the chasing/initiating contact. 2.) Women get inundated with a lot of messages from a lot of other eligible men that you're competing with your entire neighborhood for a single girl. 3.) Hence women tend to be really picky and chances of her noticing/replying back you are incredibly low.