As for how do people know if the new thread has been updated, either

1) it isn't important enough to call attention to (Like, "hey everybody, I corrected an expired/spent/changed link"), but those reviewing the thread or reading it for the first time will have the benefit of updated or corrected info

2) if it is really important and I want to be sure people see it, I add a post to the end of the thread, AND update it up at the top.

We may be highly organized, but most of our members seem to really appreciate that . Not all the forums operate as heavily on 'data' as we do, but we offer both support and data.

Cara