I don't mean to be fussy, but don't you think the poll leaves too wide a margin for each dosage category? 500-1000ug is a huge difference, and the results from that don't really mean anything at all. That could even be the difference between somebody's +1 and another person's freakout.
I think it would be better to space the dose categories a bit closer together. Something like 100-200ug, 200-350, 350-500ug, 500-650ug, 650-800ug, 850-1000ug, 1000ug + .
Also, in line what I had suggested about the Erowid-style warnings in everyone's post who mentions consumption of a dose higher than a particular agreed upon threshold, I think the poll should be aimed at what people think is a high/dangerous dose, not what people think is a good starting dose. The idea here is to find the cut-off point at which you can start making edits to people's posts to warn that their dose was too high, and to not follow their example.
Finding out what people's low starting dose is doesn't really help any of this.