I don't know about others but I have a tendency to end up making something close to comment type 3,ie. obvious comments. Or comments explaining what and not why

I don't know about others but I have a tendency to end up making something close to comment type 3,ie. obvious comments. Or comments explaining what and not why. Although it may seem that I'm describing why and not what, a couple of weeks later I would be looking at that piece of code and wondering what's the purpose of that piece of code. :| This happens quite a bit when pseudo-coding in the code and these comments get left behind. However, sometimes these green comments are good to quickly scan through blocks of code.