Just my 2 cents but I believe that FT is a place to share information. Not try and keep it to a very small circle of people. IMHO there is absolutely nothing wrong with the posts that have (re)described getting miles by using WalMart.
Let's all get back to trying to help everyone - even if it means that some opportunity may get reduced / closed at some point in time. Key is that EVERYONE should use moderation in using any offer. It is the ABUSE that will get a deal killed.