let's keep it on adult level
I was polite the first time I said this spiel, and have progressively gotten over the need to explain it again and again.
Did you really downvote my comment after replying so many sentences?
Did I follow reddiquette and downvote irrelevant and inaccurate comments while still giving you an explanation of where you've gone wrong? Yes I did, as did other people given your current score. It's a meaningless comment rank system, stop caring.
comparing games like h&g, bf, ps2, cod with cs:go doesn't work.
The success of casual says otherwise. People enjoy the mechanics and gameplay with a larger group and less harsh consequence for mistakes than MM. It's fun and it pulls in a lot of players.
Skins not initial purchase
The sales numbers were the only source of income in the important growing stage, are still a strong portion of the income stream, and casual players still buy a shitload of skins.
Demos, not POVs. Ghosting.
Demos are only in the menu for MM games, and no casual is ever going to sit down and review their demo to improve. Ghosting sucks, but it's rare, and it's casual - the results are meaningless. You don't remove a major aspect that subtly improves players and keeps them learning and enjoying the game just to avoid an occasional annoyance.
Economy
Half kill rewards means AWP sprees get little reward, but a kid getting lucky with an SMG spray still gets something. Anything excessive as a win result every round gives an AWP or Negev to anyone who wants them and makes it a ridiculous mess. Going by wins and losses with minor gains from kills means every round you can buy an SMG or shotgun and still feel like you're in the game (casual players don't grasp and don't want to eco). You can full buy the main rifle every second without fail, an AWP every third or so. It keeps you playing, gives you the good guns regularly but keeps the big ones from dominating. You're rewarded enough by kills and wins that you may get to rebuy a little earlier, but not to the point that you can run and gun every round without concern for death. It's a pretty good balance between anarchy and frugalism, with reasonable reward for good play that doesn't mean the slightly better team goes 8-0 every round.
solid_teammates
Stops trolling and unintentional blocking by the ignorant. Same reason you only get 1 flash.