Would it be possible to at least get an official comment somewhere in the forum guidelines that strongly encourages posting code as text, as opposed to screenshot images?
One of the key aspects of support forums is to act as a knowledge repository, so people with similar issues can find existing threads that address their topic. Having virtually all of the relevant information in a post be unindexable for the purposes of search is a major impediment to that. It also has a devastating impact on accessibility, as screen readers are unable to process the information. Furthermore, people who are trying to help are prevented from easily copying relevant code, either to assist in searching the rest of the web or attempting to reproduce the issue in another environment.
Stack Overflow addressed this topic thusly.