These aren't rules so much as they are a code of conduct that up until recently went without saying.

Starting threads about anything N900 has always been encouraged. When someone is dissatisfied with their device they post, just like anyone else.

That's not trolling. When all the options that this forum can give that person have been exhausted and it becomes clear that they are dissatisfied with Nokia the company or in most cases Vodaphone because they are now stuck in a 2 year contract, that then becomes off topic.
There is no Nokia forum or Vodafone forum on TMO.

Trolling would be when that dissatisfied Nokia or Vodafone customer or anyone else for that matter then posts in other threads in order to find company in their misery or to provoke a response that is along the lines of their off topic rant to begin with.

I agree that anti anything threads are not good for anyone so I usually ignore them. I think you will find most members do as well.

We do have a competitors forum so they do not start out off topic but I believe that the competitor forum was made to show what features are being developed by others. It was designed like most things here, to provide an environment where something of value can be produced for everyone.

To that end, working members would compare, replicate, and at times enhance those features and then make them available for our tablets. In some cases like Android, the public (not just members) got their first glimpse of this OS on something other then a bread board when someone ran its initial code dump on an N810 over 2 years ago as I recall.

But (the heaviest sigh I can lay on you), just like the rest of this forum, it wasn't designed for rants pro or con and no one had to tell any one how to act before.