Personally, I LOVE the word "boost".

Language is perpetually mutable, and its words are EXACTLY whatever humans want them to be.

"Boost", IMO, gets straight to the essence of a singular, finite, beaming of value ⚡️ -- regardless of whether or not there was an additional upfront cost (as I feel like "tip" implies).

(Also, @k00b, I'd like to think I'm both a real f'ing person and a Bitcoiner... but perhaps I'm part of the simulation 🤷‍♂️😛)