Aircraft parking spots are very nice, they are great for realistic sessions, but they do have some issues.
1: Ai generated Spawns.
Sometimes when you sit at a gate or a hardstand, the dealership and rosters will cycle, which spawns an ai generated aircraft where you sit, other times, you don't see the ai generated aircraft in the spot you decided to spawn in until too late.
2: Wrong places.
If you didn't know your airport layout, you might accidentally spawn a commercial in a freight spawn or vice versa. You can also spawn general aviation or aircraft too small/not supposed to be at gates or hardstands in those areas as well.
3: Seaplane/Flying Boat spawning.
When you spawn a seaplane or flying boat at an airport that has the specific facilities and parking needed for water based aircraft, you end up not being able to spawn there on account of these kinds of aircraft don't get a "select parking" prompt. Also, whenever you spawn at an airport with a flying boat (or a Twin Otter Amphibian) that doesn't have a close enough water source, you end up spawning with your gear up; you also don't get the choice to spawn on land when you're at an airport where you spawn on water.
Ways to fix:
Make it so that ai generated aircraft can sense when they're being no-clipped through and will disappear.
Have it so the parking spots available coordinate with your aircraft type.
Give the ability to select land parking or water parking in amphibious and non amphibious aircraft.
Ps. If an in server aircraft is in a parking spot, the parking spot indicator will disappear.