Instead of "like" I would say #zap 100 #sats ( or as configured by the user) ..
The navigation ( at the bottom) should be three tabs - Hidden , Global , Zapped - Hidden being all the users you have blocked from appearing in Global stream , and Zapped being the feed from all the users you once zapped ..
To add a little gaming angle to it. - say you swiped left on me -> hide all my future notes ... If I zapped any of your note , I jump back into your global stream. .. kinda get out of jail card ..
Also - if you look at your hidden users feed , you can drop anyone back into global stream by zapping .. swipe right ..
so gesture gets a flow. - swipe right moves from hidden to global and further swipe right moves to zapped .. and swipe left is works the same way. - moves from zapped to global to hidden ... makes sense ?