I understand where you're coming from. Liking anything and everything kills the effectiveness of said likes. When you're liked for simply saying "hello" it kind of defeats the purpose. I'd like to see the likes used for good solid advice, or for warmhearted welcomes, even for when something really does strike the right chord in you. I'd say a limiter would be cool so that everyone only gets "x" likes a day, but even then, I know I could easily exceed a limit because of the bountiful messages which has good information, or generally appeals to me.
Though, I can see the younger side too, alot of things nowadays revolve around likes, and views, it's the world we live in. It may seem pointless to the older gen, however thats what they're used to and I can't fault them for it.
