That’s what I intend to do from now on too. I can’t see how it would negatively impact blade life though. As I pointed out here, “a typical 10-inch combination blade for a table or miter saw has 40 teeth and spins at 3450 RPM. A 100 IPM feed rate produces a 100/3450/40 = 0.0007 IPT chipload.” So dust buildup in the gullets seems really unlikely. An added benefit is that the negative impact of an imperfectly aligned rip fence would be mitigated somewhat because less of the blade’s cross-section is involved in the cutting process. 
P.S. I’ve learned that getting saw blades sharpened is quite cost effective.
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