In learning some assembly programming I have found the documents of the Linux Standard Base very useful. It seems they tell me how things are supposed to be (on standard based systems), not just how they are in the implementation I have in front of me. On the wikipedia article there are two 2005 articles linked that suggest there is contention around this standard. 2005 is a long time ago, what is the current view?
(Note: just this year the linux foundation certified many distributions for LSB 4.0, so they are still in the game working with some distributions. Their press release of course does not mention any possible contention around it.)