I received this error after I deleted and reinstalled the tubepress plugin: The plugin generated 378 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.
I also noticed that I'm getting usort errors, which I looked up and found is a bug in php.
Lastly it seems that tubepress is using a lot of resources on the site, is there at least a way to have tubepress only load its scripts & css only on gallery pages? What is a benchmark for loading tubepress with the caching turned on? I used the P3 Profiler and found that tubepress is loading in 0.5219 sec.