Frequently Asked Question
Traditionally, Usenet has had frequently occuring postings which discussed a Usenet group's charter, the cultural expectations, and answered questions that appear often enough that they become rather annoying to the old-timers on the group.
In the case of Tcl, and comp.lang.tcl, you can find the FAQs easily without waiting for a post. Take a look at Larry Virden's excellent FAQ launch page at http://www.purl.org/net/tcl-faq/ .