B2B space is boring. Enterprisey stuff is boring. You end up with a convoluted system that's designed to please a 1000 different costumers. Most of the problems you'd deal with are customer-specific, nothing interesting.

System level stuff is interesting, what's boring is the enterprise.

Why are they evil? Android law suit.

Also maybe the fact they just rebrand RHEL and try to sell it. Granted, it is legal (due to the GPL), but it's still evil. They view open-source as an opportunity to leech technology for free and resell it after they rebrand it (and possible add proprietry extensions to it). Their CEO is quoted saying "if an open source product gets good enough, we'll simply take it. [...] So the great thing about open source is nobody owns it – a company like Oracle is free to take it for nothing, include it in our products and charge for support, and that's what we'll do."