Quote Originally Posted by LawDude
I wouldn't worry so much about what you write. Over time, a fish is either going to improve their poker game or leave when they become convinced that they can't beat the game. Either way, I doubt chat comments will help much.

As a result, I will sometimes indicate, politely, what was wrong with the play. I'll type "nh". And then follow up with "not sure about calling that preflop raise with 10-7, though; didn't you think I might have Aces?".

I wouldn't do this if I really thought my comments would drain the aquarium. But I also want people to learn about the game-- I don't want everyone to play like Phil Hellmuth or Johnny Chan, but I also don't like playing with a bunch of people who don't know the first thing about what they are doing either, as they can increase variance a lot.
The worse people play the better it is for you. And you will have fewer downswings with a bigger edge. You might have larger fluctuations inside a given session (Although I doubt it) but over even the medium term you'll have much better and more stable results. You're basically talking about moving up to where they respect your raises. Let me know if you want me to explain why that's wrong headed.

In addition, the vast majority of table coaches are tilt prone because they do not understand where the money comes from. If it doesn't matter what you say to fish one way or the other, why bother educating them? If you need to release some bad beat steam, we have a forum just for such purposes.