Are there any compelling reasons that make miners stay on this pool?
Pros:
1. Transparency that goes far above and beyond any other pool that I am aware of.
2. Really nicely done GUI, tools, and statistics.
3. Democratic hashpower voting for user-submitted proposals. (Never heard of another pool doing this)
4. Years of experience and uptime coupled with a continually evolving system.
5. Backed by large amount of hashpower including some mines over 1PH.
6. Can use Google 2FA for wallet address changes (As well as perm-locking an address to an account) really nice security features.
Cons:
1. Slightly higher PPS fees.
2. Seems to attract a lot of hate, haven't figured that one out yet.
Feel free to look back over the debate spanning basically the entire life of this post, but better question:
Do you have any compelling reason why not to use this pool?