Hi and happy 20th aniversary of your loyalty to lfs.
You first have to understand that Scawen is under a lot of pressure lately as he is busting his ass off to bring all the recent updates into an official patch. Luckily, many of us do recognize and appreciate his efforts and we try to encourage him. Unfortunately, there are also some people who think that Scawen is obligated to fullfil their requests and wishes for improvements, just because they paid some 35eur or so. If there would be some kind of a monthly subscription system like in iRacing, then maybe, but as it's now, it's just ridiculous to expect anything other than what lfs already is.
Second, please do not forget that LFS is just a PC game and it is a master piece of coding, done by 1 guy. What do you expect? Very realistic modeling of all phenomena required for accurate simulation of a racecar is simply not possible yet, so many aproximations (simplifications) have to be done. Maybe with quantum computers in future things could go much closer to reality, who knows.
Now, my humble opinion about your requests. Points that are equivalent to the claim "make lfs better" and which do not explain any issue in particulair or do not add any value to improvement suggestions are: 1, 3, 4, 5 and 8, therefore not even worth disscusing. Point 2 is reasonable, we'll see how that works with new tyre physics model. Point 6 is straight out lie, in lfs any tire slip = loss of traction and that results in loss of time. Point 7 is ok, but needs a major rehaul of lfs game engine and we will probably not see this for a long time even as a possibility that will be considered. Point 9 is reasonable and will probably be realized some time in the future. Point 10, this is entirely on LFS devs to decide, but I do not see why would anyone who makes a living out of this would do such a thing. Even if they workout a way to sell some licences, who's to say that following lfs iterrations would be better or worse than original?