As the title says,
1) Random encounters
2) Night and day cycle
3) Camping where you are, dungeon, woods etc.
4) No height advantage in combat
5) No enemy HP bloat
6) limited fast travel
7) less consumerbles for trash mobs
8) less ground effects
9) dice rolled attributes on character creation
10) food per character per day (camping requirements aka supplies)
11) More short rests
12) Traps, crafting and setting of (no limit)
1) Only for trying to rest in an unsafe place... Resting is too easy right now. 5ed is balance around multiple encounters between rests. Casters need this to keep them from burning every spell every fight. Instant teleport to a safe place to rest is not DnD. Your DM !@#$ing over your careful plans to try to rest in the dungeon is!!
2) don't care
3) Yes, and this goes with #1.
4) Please! google height advantage... it effects arrow range/power, and endurance from having to run up a hill and then fight. It has no impact on a fire bolt, or most other spells.
5) Please. It breaks balance in game and nerfs casters.
6) Having to walk to the nearest gate to use them would be fine..
7) I have not noticed this as an issue yet.
8) Yes tone it down please and base it on DnD things instead of DOS2 things. But I love the potential it has for say cone of cold, and fire ball...
9) No thanks. DnD is based on point buy now generally. And if your DM does stat rolls then they only let you roll once... How is a video game only gonna let you roll once? re-rolling till your get three 18s is not DnD, but it is bad game design.
10) don't care.
11) Yes - this is currently a nerf to warlocks.
12) don't care.