Hmm ... GMs are Potco team anyway (developers). So yes, I believe it that they can read in real time, what ppl say on the game, if they happen to be watching the game at the moment.
I have an experience with GM Sandra Tew last year. She showed up in Cuba, and I called my gm (Freedom Republic back then) and all guildies to come. One guildie - Grace - got glitched and she was half buried on the ground. She could not get out of the glitched and we all discussed that with GM Sandra Tew of what was going on. She kept on saying she was not sure how that happened - in a pirate language (not real). But in real life, GM Tew whispered to Grace to log completely off and log back on. So yes, they were watching the game alright ... and if they could spot a glitch while they were online on the game, that would be even better for them to see for themselves.