No Javascript is a limiting factor for many people. Here's some ideas on integration.

No Javascript is a limiting factor for many people. Here's some ideas on integration.

So the limitation of Javascript is the biggest problem with Posterous's theming system. I don't know how Tumblr works with the XSS problem, but maybe they just ignore it. But I think some simple step could really boost your communities experience.

First is the widgets you talk about in your theme support. I'd like to take a step back and think about instead of you guys working and building up widgets, how about setting up an "App Garden" or "Addon Area". This would allow people to submit their code (javascript included) for approval to ensure that nothing nefarious is going on. This code would have to be completely transparent to the community so it will gain in coding support as well as allowing others to ensure that it's not vulnerable code. You could also lighten your load by making the Addon Area's approval page a Digg style voting situation so that most wanted code gets approval first. But this way people can add {block:Addon} {UniqueAddonID} {/block:Addon} to their themes and the code is inserted.

Secondly, you have some very advanced users on Posterous. Some people with great design and JS skills. It would be nice if theming allowed for some jQuery calls. Maybe not everything, but just allowing some of these could really enhance your user-base's look. Just a thought.