Make code tags work correctly, or disable HTML in a post?

[Opserty]

[ ] Disable HTML code in this post.

Just a warning but you shouldn't be enabling HTML in the first place, it could be harmful to both your board and your members.

[code][/code] tags are meant to process BBCode not sure if they are processing HTML but that is probably because you have enabled people to post HTML. You can use the [noparse][/noparse] tags to prevent the parsing of BBCode, not sure how these affect HTML but then again it shouldn't be enabled.

But please, disable HTML posting.

I haven't come across a modification that allows you to control BBCode on a per post basis, you might be able to find one by searching.