how do you guys keep track of threads?

[FastPlaySlow]

let's say you reply in a thread or something, do you favorite it in order to see who replied to your thread so you can answer back?

something i see often is when ppl will answer in a thread, and then answer again later.

how do they know when someone else answers? i assume they favorite the thread or something, right?

is there a "send all replies to your replies to your email" option?