I like the FAQ and think its principle is great, but I do agree with tristan727 in part. Primarily the life insurance tips, I don't think we should be so obviously displaying what is in effect a loophole.
Buying Champagne or biscuits or even buying electricals to re-sell on eBay is one thing and Tesco probably are ok with that. But repeatedly cancelling life insurance policies for points is nothing more than a loophole.
Remember they've already implemented a '1 policy per person' rule, it wouldn't take much for them to implement a rule giving points on a monthly basis over 2 years or something - they already do that with home insurance bonus points.