[ErrantX]

As the others are saying it's not clear what your trying to achieve when getting in touch.

For example if you ask a direct question in a field they have experience I am sure they would help!

You talk about experience and skills: I assume your looking to learn such things from them. Perhaps your askign for them to send you some general tips? That is likely to get you a stock rejection (indeed the fact they reply at all says a lot about them - in a good way :D). It's the kind of question you should probably ask somewhere like here (or similar places more specific toyour field). Giving general help is a pain.

For example I often get emails asking for my advice on entering the forensics field. Most I send a very quick stock email (along the lines of - no time to write much but here are a few pointers). Those that show an actual interest by having done some background reading / having worked on some code or something get something more meaningful and personal (and usually a whole conversation).

Why not post the sort of thing your sending and we can give you some pointers too :D