Read this first: How to make use of the "Stack Snippets" more intuitive to new users?
Clearly is a problem that will not be resolved anytime soon, but I have a suggestion that may help to make our lives easier:
In Advanced Search add a new feature (option/query) like this:
Resulting in a link like this:
This option returning all posts with stack snippet in body, eg.:
Return questions about PHP using the stack snippets unnecessarily
[php] is:question with:stacksnippets:
The reason for this need is that I take several minutes looking for questions that use stacksnippets unnecessarily. I want to edit them to better organize the community, but usually my research is not efficient.