Thats a good thought, but not driving style related. Mine is a 6spd, its gets an italian tuneup a couple times each way on my 100 miles across NH. Bedford and Hookset tolls (traffic conditions permitting), long uphill on-ramp from RT89S in Concord to RT93S, likewise hills on RT 89, and I live on top of a hill that I regularly use to clean her out before I shut her down (after which I have a couple miles of slight downhill & neighboorhood cruising to let it cool off after WOT before shutdown.) At WOT I shift just past peak HP @ 4200-4400rpm, more regular driving I shift 3-3.5k even if not WOT just to keep the airflow up.
You simply can't work it any harder that I do without driving like a jerk on the highway or exceeding reasonable speed limits. The day my car choked and went LIMP, I left Hudson at 5pm in a freezing rain & snowstorm, and was in the left-hand lane all the way up Rt 3 through Nashua, and past Manchester in heavy PM rush hour traffic. As you know, that stretch gets bumper to bumper, Speed 70-75, and no opportunities to pass or "surge WOT" for short periods to try to melt ice. That tactic wouldn't work anyway, because 10 sec of WOT and you are past the speed limit, and 10 sec of turbo heat is not going to melt much ice if any accumulated in the intake from cruising at typical throttle openings. Then, you back off the throttle, and heat goes away and you are building ice. Aim a hairdryer at an ice cube for 10 seconds and let me know how much ice is left. My intake had about a dozen ice cubes worth of ice in it.
The day before LIMP, (Monday the 13th) it was 45 or 50 degrees out in Nashua, so it is safe to assume my car blew itself out completely on my drive home Monday. That means whatever it choked on the next day accumulated in that 24 hour period, and most likely in the evening during my 30 minute stretch between Nashua and Manchester in heavy traffic.
Since I was in the left lane going as fast as traffic allows (and is reasonable, safe, and reasonably legal), I was maintaining the highest possible boost and temperature headed into the IC, and it still froze up under routine highway driving conditions.
No, this is not a driving style problem, this is a routine operation problem. After all, long runs on the highway are supposed to be what these cars do best.