Let me just post in an answer what several other people have already said in their comments.
The work of moderator is, clearly, not easy and I can see that as a mod you probably see many unpleasant things, which users without moderator duties can easily miss. So I understand that there are rather unrewarding aspects of moderators work.
I have great respect for people who volunteer to do this. (I am sure I would never be able to do something like that both for the lack of time and lack of people skills.) I am very grateful for the things you have done as a mod - you had to deal with countless flags, discussions, unsatisfied users, merging accounts, etc. (There are probably many things mods have to do I don't even know about.)
Even if some people might have disagreed with your opinion on some things related to MSE and, on a very few occasions, with some of your actions as a moderator, it is undisputable that your contributions to MSE community (both as a moderator and as a user) are really great.
I hope that we will still see you here at least as an active user.