well I figured it out. I don’t know why I thought WP-FLV was included in wordpress, I guess I installed in a previous version or something and just saw it there; oh well. Anyway, I noticed a lot of the plugins will use [blahblah stuff="blah"]
for inserting into post and pages without the visual editor removing it. So the last couple comments on the website for the wp-flv plugin explains how to make the plugin use [
instead of <
and so its good now, visual editor doesn’t remove it.