I'm wondering if there is something in some of the signature lines or tag lines that is causing messages to be deleted... maybe try to modify your message in some way and re-post after it's deleted and see if you can figure out exactly what is causing the deletion?
Even though I haven't posted very often I do read the posts often and would sure miss this if it were closed out and not used any more.
I've had various google groups I've followed over many years and it's been a great tool for people helping other people in many ways, or just for general conversation.
I've really been enjoying my IMSAI replica and have had it for a while now. Guess I need to get up to date on some of the upgrades and updates though. Just retired and will finally have some time to fiddle with the IMSAI soon.
Don't give up on the group too quickly, it's worth figuring out what is causing the 'message deleted' issue.