On each blog you can change the URL using your URL subtab to not use the params - if your server supports that. So the URLs will look like folder paths instead of strings of parameters.

I'm not a developer, but honestly I doubt something as basic as the name of the parameter for the blog ID will become a variable - especially when the only reason would be to evade a government-powered censorship method.

I'll try this and let you know. Anyway, as you can further read on wiki if you are interested, one of the way the GCW is working is also blocking some words on a URL string.

eheh, I was not asking to make it a variable, just to change it into something different than "blog" :-)

SO, I checked the parameter. I already changed that, my blog is now accessible (i use only one main blog, so i set it as default). But i can't change any similar option for the admin. So sometimes the admin page is blocked.