If tail emission is a good idea, then the hard-fork should be done ASAP. The longer you wait, the more miners, nodes, and users there will be who will resist the not-insignificant change.
Is the delay simply a matter of "we're not quite sure how to implement tail emission"? Why not adopt an existing shitcoin tail emission algorithm?
Or, are tail-emission advocates trying to come up with an algorithm that will convince the largest number of miners/nodes/users to choose the tail-emission-side of a future hard-fork?
It's not that simple that it is good or bad: it's just necessary
And just the opposite, the waiting for 90% share to understand it well - is long-term process:
"Bitcoin should have had a 0.1% or 1% monetary inflation tax to pay for security" (Peter Todd, 2019)
Monero annual tail emission is set artificially at 0.9%, what is not optimal approach. Bitcoin can set it organically, thus on lowest possible level to preserve already reached level of network security. The proposal above is such kind.
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So why don't you try to change monero? It may not be perfect but it already has a tail emission so that should be much easier than changing the sacred bitcoin 21M cap.
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Monero was/is on the first line of governments' focus and attack (not to mention: lack of L2) Utilising this time and "unawareness" - Lightning Network has the chance to improve its privacy and grow as big as de facto unstopable (see, I'm Bitcoin Maxi :)
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