As section 5 stated, it is considered courteous to post messages is just plain text format because it can solve so many problems from occuring. For some instructions on how to post messages in just plain text only, click here . Over the years, a large number of acronyms and emoticons have become accepted usage in email messages. A full list needs its own FAQ, which, fortunately, others have already done. Most people know what spam is and know not to post it to the mailing lists.
Flames are basicly extremly insulting posts.
Flame wars on the mailing lists will cause the list to be put under moderation and all posts to be approved first. Lurking If you are new to these mailing lists, it would be a good idea to download a monthly archive or a few digests and read through them. Don't be in a hurry to post your own messages, it is quite possible that the issue has recently been discussed.