I've done an AMA that was pretty popular, it's not that hard to keep up actually.
You start with the top voted comment, reply, go to the next, etc. Then you reload the page and do it again.
It helps if you have gold because then you can highlight the stuff that is new since you last loaded the page, which helps you find the questions faster.
The trick for the user is to have a good enough question to get it voted to the top.
On the other hand it's not called 'I will answer anything' unfortunately. People are generally nice so a lot of 'comfortable' questions get a lot of votes rather than questions that could be seen as provocative.
You start with the top voted comment, reply, go to the next, etc. Then you reload the page and do it again.
It helps if you have gold because then you can highlight the stuff that is new since you last loaded the page, which helps you find the questions faster.
The trick for the user is to have a good enough question to get it voted to the top.