Reply To: How to use video tag in bbpress?

Are you just talking about the HTML tag like <video> </video>? And not some new taxonomy added to your site, possibly through plugin.

If its the HTML tag you will need to use a php function like this.

https://gist.github.com/ntwb/7797990

You can download and edit Stephens plugin and just add your HTML tag like so.

http://htmldog.com/references/html/tags/video/

                // Images
		'img'        => array(
			'class'    => true,
			'src'      => true,
			'border'   => true,
			'alt'      => true,
			'height'   => true,
			'width'    => true,
		),

                //Videos
                'video'        => array(
			'autoplay'    => true,
			'src'      => true,
			'controls'   => true,
			'loop'      => true,
			'height'   => true,
			'width'    => true,
                        'muted'    => true,
                        'poster'    => true,
                        'preload'    => true,
		),

		// Tables