I think most application should have screenshots next to the description section in Add/Remove Software application.
Mostly app shuld have it, games, office, other gui applications. I suggest to create fedora database / wiki with the same functionality as Add/Remove Software app.
Bugzilla is not really the kind of place for these kind of enhancements. I suggest you join the mailing list and write an email there for discussion. Thanks.
Wiki says i did it right.
"When filing an enhancement request in Bugzilla, add the keyword FutureFeature to the report. Make sure you supply enough information and rationale for your enhancement requests to be considered."