most of them don't play singles (i mean our 4.5-5.0 singles players in Gainesville, FL are probably 10% the volume of the 4.5-5.0 doubles players)
The poll did not ask how often the player plays singles! Maybe some of those doubles players who play singles pretty rarely would tend to come to net more if they do play singles?
...if you're beating them all in singles, presumably that doesn't tell you anything about their style - "style" only matters in a close match, when you're outmatched by your opponent you're probably a defensive baseliner no matter what and if you're winning easily you can play any "style" you want and still win.
because they realize that the above post pretending that being an effective rec doubles volleyer means you can be an effective all-court singles player is a bunch of nonsense, totally different skill sets and physicality
You keep on using that word, effective. I don't think it's relevant here. We're not talking about effective players, we're talking about all rec players (none of whom are really effective at anything, because they're all rec players).
Maybe there's fewer all-court players at high 4.5/5.0 than below because at that level all players have good passing shots or something. I know at low levels you can get a lot of free points by just... coming to net and letting the other guy miss the pass. Or just hit to the backhand of the guy that can't hit a topspin backhand and come in on that.
Someone who is equally "BAD" at the baseline and at the net is just as much an all-court player as someone who's really good both at the baseline and at the net.
the ones who do play singles also - yes, they play mostly from the baseline in singles despite being solid doubles volleyers, with a notable exception of a guy who's about 6'6" - the best singles player i play against, who throttles 4.5-5.0 singles players in USTA FL sectionals, doesn't ever warmup volleys when we play practice singles matches, despite spending a lot of time at the net in dubs
Hmm, definitely very different from my experience here at 4.0-4.5. We've got at least a few doubles specialists who do pure serve-volley when they do singles, and plenty more that opportunistically come to the net when they can (i.e. all-court players).
Maybe your experience with the best of the rec players isn't representative of
average rec players. Most are in the 3.5-4.0 range, so your experience with 4.5-5.0 players is what, the top 1% of rec tennis players?
maybe there's something different in the water in other parts of the country / world
Maybe different surfaces. I did notice that when I moved to someplace with a long winter where all the tennis is indoors from September to March, that there were a heck of a lot more net players here than in the place I moved from where it's outdoors all year.
So the poll may well be telling you something about the geographical distribution of players, the speed of the surfaces they typically play on and the conditions, etc.