Having completely demolished OPs argument as a group ... good work team!!! ...
... there is a reasonable question about whether chess.com should offer the option to pair two players that want a two game match. That is, you could both nominate it as the match you want to play and then if you reneg and don't play the second game you lose the second game by default.
Thoughts?
My guess is the main downside is, as I alluded to above, you get stuck with a staller for two games instead of one. Or indeed a cheater. Or indeed a verbally abusive opponent, though those are rare.
An explicit option would also split the matchmaking pool leading to longer search times and/or poorer quality matches. However, there is always more that can be done with matchmaking systems to automatically match players who are alike. It has its limitations though because players don't necessarily want to players who are similar to themselves. It'd cool to match stallers with each other and rude players with other rude players etc.
If white wins a single game and black offers a rematch, white should accept or give a real reason why they can’t (dinner, work, etc.).
I don’t always ask for a rematch, but lately more and more players are declining a rematch after winning one game as white. It is childish and getting worse on the site.
After two games or after winning one game as black, this wouldn’t apply.
If you are part of the problem, please stop.
I'm confident that if you got your wish you'd be back complaining how often Chess players eat dinner. Your deal with your opponent is to spend time together for one match and if you both want to play again then there are options. Many players don't want to play again straight away. Analysing the previous match would be one reason. If you want to improve, you could use that time to analyse your loss. At the end of the match you could try asking politely if they'd like to play again in the future. The more demanding that you are, the less likely it is that they'd want to spend time with you in the future.