I'll only answer the first question at the moment. I frankly don't have time for the rest right now.
You disagree with Random Encounters. You don't like them or want them.
Therefore, everything you say is against it. Thus, you come up with arguments like how Random Encounters can be exploited by players to gain loot and XP.
But, you aren't against long rest spamming. And that's just illogical to me. You want to be able to spam long rest as much as you want, and it IS a much bigger, more serious exploit.
Fireball 3 times, kills all monsters. Long rest. Next fight. Fireball 3 times, kills all monsters. Long rest. Next fight. Fireball 3 times, kills all monsters. This is a gameplay major exploit. There is literally nothing in game to stop this.
