OK so its an automatic fee not a tip. but ive seen several threads where pokers where complaining about the low amount some people pay for pokes. one solution that was suggested was asking for the poker to state a fee before poking.
This idea proposes a compromise situation where the poker cant demand a huge fee and can even offer the poke for free with the unlimited tool.
Some pokers may only buy a TL150 tool but if you need a low TL poke and there are 2 pokers one with a TL150 and one with a TL 75 then the poker with the tl150 could lose business.