Suggestions:
Add a list of things that will never be added (such as tideborn)
[Beta]: that's a great idea. On it
Summer chipao please?
If possible, would love to have hairstyle fashion added
Make a dedicated fashion area with NPCs wearing the outfits, each one sells the outfit its wearing
No hyper xp ever please ._.
[Beta]: no hypers in here 
Is it possible to adjust rates per level or is it global only? If level is possible, suggest starting at 1x for 20-30 and increase by .1 or .5 every 10 levels thereafter, so that it's still an achievement to level high, but not ridiculous
[Beta]: We're currently just multiplying xp,sp and coins from all quests and mobs by some modifiers. The modifier is constant atm, but we could make it depend on monster or quest lvl. Although I'm not quite sure what problem we are trying to solve here. You're saying it's too easy to lvl up on early levels?
Be able to change jump key
[Beta]: working on it atm
Add interact key, at least for NPCs
[Beta]: not a bad idea. it's doable
Achievements maybe? With small rewards, possibly an exclusive (or 'easy' acquisition) fashion?
[Beta]: it's an interesting concept. Could we do it with custom drops, recipes or custom quests?
Show quest title colour in the tracker
[Beta]: that would be cool, although realistically it's too low priority to be done anytime soon
Longer chat character limit
[Beta]: i'm afraid we can't do that. the chat is already glitchy with smileys and two-line messages and it would be only worse with 3-line messages
Will we have seasonal events, like the snowmen? Suggest to have as many as possible, to keep the game fresh in place of expansions
[Beta]: snowmen event or archo invasions are lame. We can do better 
Bigger item stacks in inventory (for instance, herbs max at 100 in inventory but go higher in bank)
Enable all main city tele points by default (Winged Elf Hsi's quest that involves visiting Etherblade sucks without Ether's tele point)
Bugs/Issues:
Quest tracker turns off on login
Skill bar extensions turn off on login
[Beta]: I agree those two are annoying. I could actually try to auto-expand the skill bar, not sure about quest tracker
Can't right click to move items between bank/NPC/etc
When moving same item from inventory to bank, can't stack directly - have to move to empty space THEN stack in inventory
Can't sell water veno spawned with, can't drop it either
[Beta]: That's by design. It's the same water that you get with the original veno questline, isn't it?
Magic Shell seems to be wearing off faster than the rest of the cleric buffs
Used phoenix to kill Elder Tortoise - since it was at the top of the water and reachable by air, figured I'd try it. But it never hit back...
[Beta]: Yup. You can glitch multiple world bosses this way, not only those in water. I don't think I can do anything about it, unless somebody points me to a solution
Apparently a PW Boutique Agent wants to give us a quest, according to the Find Quest button
[Beta]: We'll get rid of those once the quest editor is out. We can't implement a proper list of available quests, so at least the Find Quest button should be reliable.
Please note:
NONE of this is meant to be a demand or anything like that! It's just ideas and things that I think would be good, but are generally not particularly important. I know I list a lot of stuff, it's just because I care about the server and want it to be the best 