I have plenty of fluorescent and CFL around the house, including the shack. I haven't noticed any "hash". However, none of my antennas are located directly over or close to the house. I did use a portable AM broadcast radio to test for RF hash from the fluorescent lights in the shack. I had to be less than a foot away from the fixture in order to hear any hash.
Same here. And my CFL bulbs have been working just fine for years. No problems with reliability whatsoever.