Yes, just because it is more obscure does make it more secure in general, but it doesn't make specific vulnerabilities go away. Everyone has this idea that Linux is so secure, but its really only because a minority uses it. If you look online you can easily find exploits for Linux that have just been discovered. And I don't have time to constantly be doing research on something like that. Thats why I love Secunia PSI.

It pays off to be paranoid. So even though Linux is "more secure" due to obscurity, I like to know about the vulnerabilities. And i know Linux can "get away with it" now, but its things like that which make Windows, in my opinion, inferior. They "got away with it" for too long, and it caught up with them. For an OS to keep ahead in security, getting away with it just isn't acceptable in my book.