Multiple suggestions.

1 - Remove paladin's shield bash off the GCD. Stunbotting really isn't fun, and this is probably going to deter fresh tanks.

2 - Why can't you open your freecompy list while in a dungeon? Is there a reason behind that? Should be removed if not.

3 - Blacklist feature when right clicking a name. Also should be a report feature for spamming.

4 - Not being able to do a solo que quest while in the dungeon finder. Wouldn't it be better for it to simply pause your que instead of having to decide if you want to give up on the que you've been in for 30mins, or do your story quest which requires that solo event.

5 - Pet control. A toggle-able auto cast feature would be nice. Since currently you either have to A) Let your pet cast w.e the hell it wants, or B) Have it cast nothing and you have to completely control your pet. A toggle-able auto cast system would be amazing since your pet will still cast basic attacks/spells, but save the 1-2min CDs for when you want them.

6 - An open fate group system on boss fates. Pretty much how it would work is you can have a setting to either accept or deny this (so it won't screw with your dungeon Q times, or even make this a different kind of party so it doesn't do that) and when you get to a boss fate, let's say svara for example. There would be a "join open group" or "create open group" open, and that would build up parties for fates quick and easy.

7 - Vote to kick feature in dungeon finder. I'm sure by now we've all ran into that annoying party member, that just won't do anything, or they're just a prick.

That's all I can think of for now.

1. Not likely since it would mean either giving too much benefit to gladiators once PvP is implemented since they could just stun between normal attacks. Although the stun cannot be maintained indefinitely, it allow them to stun repeatedly over a short period of time and entirely disrupt any classes which have a casting time (TP costs don't mean anything for short fights). Even if so, they would likely end up balancing the skill around a 30 second cooldown instead... Which would render that whole strategy meaningless along with your intents here. If it's boring, find people who can run the instance without stunlocking the boss, or have people who alternate between stuns.

2. Likely related to the system they're using to host the instances or link characters across servers. Probably a technical impossibility.

3. Already on their list.

4. Would probably require a drastic change to how the duty finder is implemented and not worth the effort considering how few singular battles you usually enter into outside those story quests where you cannot proceed until doing those instances.

5. Been suggested several times, no official response.

6. While the notion behind a sort of auto-join system for the larger fates may sound like a good idea, such things only contribute to the lazyness of players and anti-social behavior. Have already seen a system similar to this in place on TERA. The result is that you have 1 or 2 people actually doing any fighting in the party while everyone else sits on the sidelines soaking up the exp and getting full credit. We already have this problem with instanced battles.

7. Been suggested several times, no official response.