I am here speaking software patents. I was replying to a thread on G+, and wrote a very long reply, that indeed is a post. It's on Red Hat patent promise, which has some unfortunate language that can be interpreted as "in general software patents impede innovation", meaning that in some cases they don't. I think that my reply can be of more general interest and make an excerpt here, with a few minor edits.
I hate to defend rich companies and not getting paid for it (not that it would be the first time ;-), but in this case I will make an exception, also because the people who conceived the strategy of registering software patents for defensive purposes are good friends and trustworthy Free Software friends. Red Hat is a company full of cash, which is eating chunks of market away from even richer companies. It makes software, Free Software, it contributes heavily to Linux, it has no proprietary exploitation of the software it makes.