It's a habit of mine to run the carb dry before long term storage. Old gas in a carb that sits for a long time will definitely cause problems.Imo, the bad fuel excuse is overrated.
Unless it’s been contaminated or sat for 5 years things usually start up on old fuel as long as the bowl didn’t run dry.
Not sure what the OP was suggesting but that’s my experience. The best prevention is use it and keep the dirt and water out.