If I want to save all the side quests for 2.5, should I pick up the side quests and just not do them? If I do, will they automatically upgrade to level 50 quests upon beating the game again? Or do I have to not touch them until 2.5 for them to be level 50?
I just barely started PT2 and I'm at Hammlock and he's got the first side quest available but I wasn't sure if it'd disappear if I didn't pick it up and then he wouldn't have it later when he's in Sanctuary.
NEVER argue with an Idiot. They will drag you down to their level and beat you with experience.
Not a problem, careful if you play with randoms though in TVHM as they can accept the quests in your place thereby potentially hindering your lvl 50 rewards.
Feel free to do quests that give skins,eridium or cash though for experience if you feel under leveled for whichever area you are in since eridium and cash are easy to come by but the xp boost is nice for lvling still.