>>1
The fact that you use d**c**d means that you likely are plagued by the use of other such software that vendors to millions of third parties, and ...possibly.. retarded.
Scammers can get a lot of contact info on you just by using one of these services, but you didn't mention anything about them datamining you so that might not be
the issue. I would recommend giving fake credit card numbers or not talking to people at all in such a case. I can't really think of a time where I myself have been
scammed other than being forced to pay for an extremely overpriced drink at some places because I was parched.