I don’t think there’s a master thread for deliberations on leaving the game, so no need for a merge. 
I look forward to what you and others have to say in this conversation. Thanks for bringing it up.
a starting thought
I would of course be sad to see you go. I enjoy your company on the forum.
Perhaps selfishly because of that, my hope is you’d consider a break for a while, or deciding on a reduced play schedule that worked for you, so you’d still be around in the community — rather than leaving outright.
But of course, you should do what’s right for you.
And it’s a game, certainly any point it feels like a burdensome grind and not enjoyable fun is reason enough to pause or stop — with no feelings of obligation to keep going or return.
If you do decide to take a break, @Gryphonknight wrote a nice guide to setting things up to be away for a while, whether for vacation or quitting with the possibility of returning one day: