Legitimate complaints I hope Square works on or allows us to mod:
1. Do non-combat actions while mounted (talk to people, queue, check marketplace, etc)
2. Be able to mount while companion is out (thus dismissing the companion and resummoning him when dismount if able to, so you don't spam Gysahl Greens)
3. Ability to filter buffs/debuffs to your liking (like only your debuffs on boss/only castable buffs on party/only debuffs on party/etc)
4. Remove the invisible gcd from secondary abilities and items (personal/opinionated)
5. Allow an option for offensive abilities to auto-pick a closest target if there are none currently targeted

1/2/3/5 are all purely positive additions, 4 I set as opinionated/personal because I think it would be overall more enjoyable for everyone's experience but I'm not sure if it would be deemed overpowered.

Thank you SE/moderators if any of you take notice of these suggestions/complaints. And thank you other forum posters if you add to this list.