Would've been great if we had gotten some confirmation all the other times this question was brought up though. As late as yesterday it was obvious the times were unclear:
"ARK EVENTS Starting June 20, you can pre-create new character, Ark! If you pre-create your character, you will receive lots of amazing gifts when Ark becomes available to play after maintenance on June 28. Participate in new events to earn Ark Coins which you can exchange for great rewards such as the Chaos Ring, Arcane Symbol Selector Coupon, damage skins, chairs, scrolls, and more in the Ark Coin Shop. Create a brand-new character (other than Ark) during the event period, and select it to have the special “Burning” effect when the Mega Burning Project event returns. After your character reaches Lv. 10, every time that character levels up it will gain an additional two levels all the way up to Lv. 150! "
They likely just mean that you'll get the rewards for pre-creation after a maintenance (but that ark will become playable before that, as patch notes state). It's kinda poorly worded.
It's just a lot easier to refresh a /find command in chat than bringing up guild UI and clicking the menu option without fatfingering and inviting them to party instead which is awkward for everyone involved.
The buddylist doesn't show the area the person is in, but only the map name, and buddylist has no "See Location" menu option like the guild UI does (which is essentially the /find command that shows the full location in the chatbar).
It's also a good way to confirm if someone is using an i or an L in their ign, preventing people from getting themselves scammed in trades due to impersonators.
There's also the issue of trying to organize casual groups without having everyone added (cause of buddylist space being limited) or being in the same guild/alliance. Or if you're guiding some new player to a specific area. The party text "The user is currently at another location" doesn't really say much and you can't give useful directions based on that.
And lastly it's useful for finding out if someone on your buddylist has deleted you so you could free up space of your own.
I'm dying to have the old ring couple effects back as CS cover instead for married people. Sorry to whoever designed the new one, but it's garbage.
Amoria also needs to be reopened to the public instead of only accessible through hyper teleport rock. Or make the PQ accessible through the PQ entrance map.