Does it make sense to use Thread/Process-data as seed to generate random numbers?

Some additional questions: Is there some technical way to use thread-data (stored in RAM, i.ex. several sectors), use it as seed for lets say a couple rounds in a mersenne-twister ?

What about JavaScript?

Are there any Pros and Cons for that ? (let's say it reveals unwillingly data about the scheduler)

Are there already any 'cryptographically safe' random number generator - and what's their (algorithm) technique/usual approach on this ?

**I know the guidelines.