Agreed, although this doesn't sit well with me when combined with the reasons for the recommendation - i.e. 8 is just better, line length should be 80, nesting

Agreed, although this doesn't sit well with me when combined with the reasons for the recommendation - i.e. 8 is just better, line length should be 80, nesting should be limited to 3. If someone can set their indent level to something other than 8, won't they be more likely to violate other rules? I say this having just realised I have my tab set to 4 spaces ...