It would be nice if I could install a userstyle or userscript by entering its URL (even filtering on userscripts.org if necessary) into an "install Userscript" dialog -- or drag and drop a userstyle onto a Fluid app/URL field/dock icon to install it (like a .xpi in Firefox). The current flow isn't that offensive, but it's certainly not great/easy, especially when I find userscripts in Safari and need to download it, bring the Fluid app to the foreground, pick the Userscript menu icon, open the Script folder, drop the .js file in, then reload the scripts menu -- FINALLY turning on the script in the menu.
Imagine that the search actually searches Satisfaction through their API, and clicking the Help link would just open the Satisfaction system from within the Fluid instance. That'd rock!