Is there any way I could do so to help bitcoin users to accelerate the process to reduce in any way the maximum block height ?
There is for sure the segwit that seem to work for a couple other cryptocurrencies, and a centralised project called bitcoin unlimited that could benefit a precise pack of people around it.
Is there any other cases that I could do as a regular user, passionated by Bitcoin and every other cryptocurrencies, to help and move upward ?
Thank you
I quess that you don`t understand how the blockchain works.
Bitcoin unlimited is not the solution,it`s a part of the problem.
Deleting all the very small spammy transactions is the only solution for me.
However, if you want to speed up the process of implementing segwit what you could actually do is run your node with supporting uasf activation. With it people wouldn't need any miners, thus the blocks wouldn't be constantly full and you wouldn't need to pay big fees