I have very limited experience with greasemonkey (actually, only the fancyLWNComments script:
http://lwn.net/Articles/249618/).
The script is awesome, but it is a real pain when reading LWN from multiple computers. It
would be really cool if I could store the script and associated state somewhere on an LWN
server, so that it is automatically downloaded and executed on my computer whenever I login to
LWN. Extra credit if it can be made to work without installing greasemonkey on the computer
I'm surfing from.
This could give a fairly big chunk of what Forkolator is trying to achieve, without executing
user code on the servers.