Areas where I feel I'm spending too much effort for the reward:
Kill All Missions with wandering mobs.
Timed Kill Alls. (hmm, this one just stresses me a little, had similar to Rudra Freakshow example)
Kill All with a blinky. (If you kill everything, all blinkies should auto click)
Pointless deliveries well off the beaten path (I'm talking to you, Indigo & Crimson)
Many hunts, any over ten seems pointless to me.
Some badges take a long time to grind out, sorta wish you could have a SG badge that if members of a SG get over X times, new members get a boost in earning the badge themselves. (I can already see some issues, so not a serious suggestion without more thought)