I think the history of hacking, bbs's, the internet, etc all that learner suggested, I think it is a good idea. If you don't want to read it, then don't. I don't see a reason not to do it, so if someone really knows their shit in that are i think they should do one. I think anything that someone wants to give a lecture on should be done. (with the obvious exception of how to get warez, child pr0n, etc.)
Also, I think until we get a dedicated forum, that maybe we should have a topic naming structure, so people know it is a lecture. such as "Lecture - Title here" or something. then if someone searches for "lecture" then they should all be listed.