way to shut off WYSIWYG editor?

[dragonexpert]

I think this is done by editing usercp_options template.

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<td valign="top" width="1"><input type="checkbox" class="checkbox" name="sourceeditor" id="sourceeditor" value="1" {$sourcemodecheck} /></td>
<td><span class="smalltext"><label for="sourceeditor">{$lang->source_editor}</label></span></td>

Change the input type to hidden and assign a value to it. I'm not sure if you want 1 or 0 so you'll have to test to be sure.