Know what you are sayin mate. BTW this was an internet poll not a walk by one but the same could be said for walk by polls. Where are they taken? Princess Street Edinburgh? Certainly not High Street Dundee or Suchiehall Street Glasgow where I'm absolutely positive the results would be totally different from the 51/49 that the BBC and Govt like to admit to. Selective canvasing.
I reckon in their current state of mind that people voting yes are more likely to want to take part in an online poll. I wouldn't read anything into it.