I think the whole point is that the player DID communicate why they were leaving (and therefore that they were leaving).
As far as I know all we have to go on is:
quote:
one of his characters put on a the magic item that changes your gender, and the player freaked out. Quit the game, maybe stopped being that GM's friend.
Which, yes, paints it as 'player inexplicably did this unreasonable thing'
But, since it was written by the GM, and presumably from the GM's point of view, I took the emotive language with a pinch of salt.
Most bad GM's don't go "well, I was running an appalling game and being utterly unreasonable..."
And, no, they didn't say "I'm leaving because of this. Here are the details of why that was the catalyst for me leaving the group"
I don't think they owed that level of explanation.
As you say 'sorry I'm not feeling it' is enough, so why don't you count 'I don't like the way the plot went' as enough?
And since the OP asked for reason why the gender swap magic item might cause someone to leave a game (or, at least, that's my reading of it) I'm kinda not sure what you're asking me or why...
'Can I have potential reasons for this?'
'Sure, here are some'
'I don't disagree, but I think the player should have done this'
Ok, but what's that got to do with what I wrote? And, as written above, they did do that.
(Sorry if the tone on that is off. It's a genuine 'have I missed something?' question because I feel like I have, with my understanding of what's happening to hopefully show why I'm asking it.)