I don't agree with this, currently the option with zaps is likes is perfect. Having #onlyzaps is gonna be a barrier for newcomers, and if we want this protocol to be successful we don't want that.
Discussion
I don't think we really disagree, like has its own importance, having a ability to attech certain amount of ZAP isn't bad in any way. You should be still able to like any user even user without wallet.