Hey you’ve asked a lot of questions many of which are answered on the KAS wiki FAQ page https://wiki.kaspa.org/en/faq . I have followed KAS since the early days and was one of the first discord members of the project. I know the project was mentioned in cpu mining forums back in the early days but I came to recognize it from a 2017 coindesk article that mentioned the founders work and DagLabs. By following the work of DagLabs I was led to the eventual discord channel and maintenance launch. In the early days the devs were solely focused on deving (they still are) but at that time there was almost zero marketing and only a few post here and there about the project. Anyway check the faq I posted and if you require a more nuanced answer on any particular topic after doing your due diligence feel free to ask again.
Thank you. I've looked into the FAQ. While it doesn't answer any of my questions directly, I guess from the code linked in the Twitter post about the genesis block I can deduce that mainnet/gamenet and testnet were separate networks/coins, while Gamenet seems to be the "pre-deflationary phase" mentioned in the FAQ. However, it's a bit strange that the author of the Twitter post mentions a line in the "SIMNET" genesis block (which is normally a kind of testnet) to "prove" there was no premine, while the mainnet genesis block contains a quite big Coinbase section and also a non-empty "utxo commitment" section (line 77). It would be nice if somebody could clarify that 
The thread's OP was written several days after Nov. 07 (the "gamenet"/mainnet launch). Thus, it would help the credibility of the coin if links to announcements of Gamenet from prior to Nov 07, 2021 were published somewhere; of course ideally archived links (Internet archive, etc.).
Anyway, the info until now lets me believe that the start wasn't as fair as in Bitcoin or some very selected altcoins, but more in an "instamine" fashion, like in the case of Dash or Monero. This means that the team wasn't very eager to announce the launch. Which is of course understandable from an economic perspective.
This does not mean that the coin has bad chances to be added to my list. I explicitly have added coins like Dash, because the "fair launch" question isn't black or white for me, and even BTC and LTC had few miners at the start, or some dominant miners (Charlie Lee in the case of LTC, Satoshi and Hal on BTC). The "red line" for me is a genesis premine or mining before the first public announcement (e.g. Bytecoin), so this would not affect Kaspa.
But it would be cool if someone could answer the question I raised above about the genesis block, and my questions 3, 4 and 6 from the last post