Whether or not Apple does something in the future is a separate question, but accusing them of something they haven't done (despite several opportunities) appears more than a little biased.
Update: I am 100% incorrect about the developer certificate being free. You must be a member of the $99/yr Mac dev program to get one. So score one for "raising the walled garden" and I will gladly eat this humble pie.
IMO they are being complete shitbirds about app signing and I am actually surprised to hear Mavericks is not more restrictive. I fully expect them to lock it down at some point. (I've resolved to use only FOSS in the future and not buy Apple.)
Also I want really fine-grained permissions that I can disable to make system calls return fake information a la Cyanogen Mod.
then does that mean all the CA's in my system keychain can sign apps and have them run without the "risky click" dialog?