I'm more concerned with the fact that 27 out of 32 all but first category "rarely and never" use the actual blade guard. There must be a reason that the count is that high.
Only 5 out of 32 always use a guard and splitter. Interesting but not surprising, at least to me. Richard, after seeing your photos I was a whole lot more inclined to use the safety devices, which I still had.
You inspired this poll, in case you hadn't already figured that out!
I think there is a preconceived notion that "It won't happen to me"
especially among those who have years of experience using a TS, like myself. Kickbacks are far more common than blade injuries in my opinion, but they can rupture an organ and I know of an experienced mill operator who had a piece embedded in his gut.
The "see thru" plastic guards are a problem when crosscutting, since you can't see the blade under the guard and know exactly where the cut is. The blade edges can be visible if you use a sacrificial fence extension bolted to your mitre gage. I Always use one myself for that reason and to assist in cutting both long and short pieces.
I do most of my crosscuts on the RAS saw which has the kerf in the fence and the table. When it gets a little rough and hard to see, I spread a little Bondo in it, sand it, and make a new pass to clean up the kerf.