Polls are a tricky thing and can easily become biased when done in forums like this. It’s still also a very small number of voters compared to number of users on the site. 20% of the current number of voters (137 when writing this) means approximately 27 OSR owners. There is also the question of how many that use the OSR for VR. SLR is a market place for VR after all and I guess they want to invest if there are a reasonable number of VR users.
You could argue that there should be at least 600 VR users on the site since some of my VR scripts have been downloaded close to 700 times (edit: 748 times on my most downloaded script). There is of course a risk that some 2D only users download them too in case they get a VR device in the future, but hopefully they are a very small group.
Extrapolating the numbers from the poll can also be risky since it could be that OSR users are more of enthusiasts and possibly more active here at the forum compared to owners of mainstream devices.
Hopefully more users will answer the poll given more time so that we get better statistics.