The linux plugin for flash is a monster. Bogs down my dual 1600 MP system
When I get on forums with multiple flash images on one page, the browser takes a crap and goes really slow.. Usually, I just disable sigs.
Its something we live with. Support for linux plugins are slim to none, so just having it as a possiblility to even play flash is good enough. Unfortunatly, most webmasters are too dim to toss in a javascript detect and alternate JPG, so its a requirement on some sites. Takes about 10 seconds to code in a detect and alternate image. For a sig, I wouldnt expect it, but for a commercial website, you would be surprized on how many are not navigatable.