Why is win trading such an accepted part of this game?

[MomomiMomi]

If I had to guess, the reason is simply... because the PVP in this game is Trash, so people don't wanna put in some effort on something that they don't care about outside of Glamor. That's also why Wintrades tend to do the weekly challenge log, as opposed to grinding out for the gear itself. It's just not worth the effort to your general player because of how bad PVP is in this game.

Oh, so that's why people buy clears. I never understood that. Makes perfect sense now.

[Eidolon]

Oh, so that's why people buy clears. I never understood that. Makes perfect sense now.

Well, I can't speak for Alexander. I've fallen behind a bit myself.

However, for Final Coil? For some people, that IS what it is.
For other people, it was access to the current raiding tier (Since the original SCOB/FCOB were blocked by the previous tier)
For other people, it is the unrestricted loot rights. (Think about primal ponies, people buy clears/farms for those all the time, though the price has greatly fallen.)

Edit: oh, and other people wanted to be able to join farm parties "Because they couldn't find a competent group to clear." These ones were fun when they asked if they could be allowed to live through the fight and contribute.