Bugs are never closed "randomly". Only those that are:
* Fixed; or
* Don't have enough information and the reporter fails to respond to questions for 60+ days; or
* Aren't immediately reproducible, and have no evidence of affecting a currently supported release, and the user fails to respond to further questions.
I think you're getting worried over very little, and the method you describe is one of the things I already do.
Bugs are never closed "randomly". Only those that are:
* Fixed; or
* Don't have enough information and the reporter fails to respond to questions for 60+ days; or
* Aren't immediately reproducible, and have no evidence of affecting a currently supported release, and the user fails to respond to further questions.
I think you're getting worried over very little, and the method you describe is one of the things I already do.