that by itself worked???
should have had to use a second filter – which was created after that old post… maybe thats why you have to edit the post… you shouldnt have too…
add_filter('sph_forum_vars', 'my_forum_vars');
function my_forum_vars($strings) {
$strings['checkiframe'] = 'no';
return $strings;
}
that might be your issue on saving when creating…