(Admittedly, you really have to be motivated to do this)
I lowered the opening bid on one of my auctions and instead of changing it, I just deleted the auction reserve price. I hit "SAVE CHANGES", went back to "my auctions I'm running" and there was no flashing red r on that auction. I tried again, and it worked on every one of my auctions. Afterwards, I changed one auction's starting time and got the site's reminder to put in the reserve price, so I did . . . and then came right back and deleted the reserve price again.
I feel I have done my little part to help clean up the environment to attract the positive attention of those buyers who think the flashing red r's mean 'reserve price', but my only concern is that by playing with toys I really know nothing about, I may have inadvertantly damaged my auctions in so doing. But, if not, then . . .