There should really be a feature or plugin that allows you to plug in bits of any sort of code into a post without having WordPress modify the code. For example if I wanted to post a video or a targeted ad into a post, currently I have to change to non-WYISWYG mode...add the code. If I press save and then in the future go back and make changes in WYSISYG mode, WordPress has deleted the ad code that I had put in! No good!
A simple block like the "code" block would be perfect, that allows you to put any sort of code without WordPress making modifications to it.
Is there something like this out there? If not, does anybody have the same gripes I do?