I have reported this issue to Achat.
As new topics can be posted here and members have kindly created test topics. I can only think some words, unknown to us, may be banned and the default of Achats Home Page is then activated, similar to the Achat Game with profiles defaulting to “I LOVE ACHAT” when banned words are used.
Unfortunately as the topics go to the Achat Homepage, I am unable to edit the posts to approve or activate them again.
As you can imagine, my OCD is going into overdrive after spending so much time, tidying up the topics and forum.
I will be doing a few tests sometime today, to see if I can identify any banned words in forum. Watch this space! lol