[...] To my understanding the decision to use lager block sizes has
to be made by the miners [...]
No, the decision must come from consensus on the Bitcoin Foundation and coders, probably derived from consensus with full node owners. Miners (pool miners, specifically) play little or no role regarding block size.
No, the consensus is simply the people who mine and use the blockchain.
Yes a pool can ignore their miners, but a pool is still a miner
I think a pool should not ignore its miners. If a topic is really controversial the pool operator should state what
rules he intends to follow and miners could base their decision which pool to use also on that. If we take
it serious that bitcoin is a decentralised system people should be aware of their 'power'. (OK maybe the power
of small miners is limited).
I don't want to turn mining into a highly political affair. But I think everybody using and contributing to
bitcoin should make up his mind. Finally this kind of decisions can influence the future development of
bitcoin (centralisation/decentralisation). In the end it is best to find some consensus based on good
arguments.
If pools/miners decide to not want the change, and there is a high enough % that decide this, then that will answer it.
If exchanges decide to go with the change then that may influence pools/miners who want to be able to use their mined BTC.
But the reverse is also true that the exchanges may decide that they don't want to risk very low transaction confirmation if most pools/miners go against it.
My only confusion in it is that ... I don't see an overnight sudden increase in transactions because of the change.
The change would simply mean that future growth wouldn't be stifled by hitting the limit as quickly.
Anyway - there's threads on the subject, to look at elsewhere ... ...
If I look at the average blocksize we have a slow exponential groth over the last 3 years. If we extrapolate it, the 1Mb
limit will be hit in 2 years from now on and it will take about 8 years to reach 20Mb. So I personally do not see an
urgentneed for a
large change of the limit with may have unforeseeable effects.
But right - there are threads on the subject, to look at elsewhere ...