I spent years in IT industry in most days and in most Modern companies I found that they consider the documentation a burden not a solution for their problems .
Some of the reasons I had seen to avoid Making or updating the documentation :
- understaffed and lack the Time .
- lack of well ( no one will read it ) .
- lack the intention ( if some one know what I know I will be fired ) .
- I am the only one who do it anyway why should I document I can remember everything .