Multiple of those suggestions are about the specific issue of mercs and their impacts which is something we've already noticed from the dev clash, not really applicable to the wider point I was making. Manpower is partially tied to pops already the amount you get is based on pops, sure more stuff can be added to tie them closer together, is that necessarily good or fun is a different question.
You call me ignorant yet you seem to think that if we don't respond to something (which nobody has time to do for every post cause its not actually part of our jobs unless you are Rod) we are not thinking about the issues and that we are ignoring all these player ideas to solve the problem, especially when I can go through this exact thread for the last few pages and find multiple places where people say to get rid of mana and do not give any form of a solution or one that has problems already mentioned in my other post
What I think everyone is trying to say is that the last dev clash has made several issues with the current game design quite evident and those issues are:
1. Mercenary spam making manpower essentially redundant past midgame, because as long as you have enough gold, you also have an endless supply of potential soldiers too, all available for hire with a click of a button.
2. Lack of real war exhaustion accumulating on either side of a giant war that spans the whole mediterrenean and lasts for half a century, if not more. Not only is internal stability of most countries involved not threatened, there are no signs of real economic consequences of such a war. Yes, the economies have largely stagnated, but they haven't regressed and are in fact, still slowly getting better, which, considering the scale of those wars, is a glaring problem.
3. Lack of consequences of enormous casualties on country populations. If Rome alone has lost 4 million soldiers, their population should most definitely not have grown, yet it has. That is 4 million people we're talking about, and likely far, far more, due to the famines, diseases and general devastation that'd occur due to such a war. There should, imho, be some mechanics that'd result in pop numbers declining sharply due to all the deaths, either through a reduction of pop growth or through outright pop deaths and it could be tied to either manpower, war exhaustion, or to both.
Now, whether any of those have much to do with mana or lack thereof - I believe there's no real reason to hate on that mechanic, as abstract as it is. It is just a matter of fine tuning everything so that it works fine together, and, whether you replaced mana with money, some sliders, or anything really, it'd still need to be balanced to work well with everything else.