How does a person snag when using a strike indicator \ float?

A lot of gear guys switch to floats and jigs when the salmon are in thick. They do this because it is too easy (and frustrating) to snag the fish when drift fishing. The float keeps the jig\fly above the fish, so only those fish in a 'biting mood' will come off the bottom and take the jig\fly.

I fly fish and gear fish both. I don't like indicators on my fly rod. If I want to fish that way, I just use my gear rod because it is more effienct when doing that. But other times I prefer my fly rod for presentation and other times just asthetics.

If I really wanted to snag (and I DON'T), I wouldn't use a float\indicator - i'd use a lot of weight, cast into stacked fish, and YANK. Or i'd use either a long leader+ lightly weighted fly + floating line, or medium leader+sinktip+nonweighted fly and floss the fish. Again, why would I need to use a float?