I understand your concerns. The problem is that I do this survey as part of my regular job (= there is no external funding behind it), which means that I have to pay incentives out of my own pocket and I simply cannot afford to pay 0.5 ETH to everyone.

Also, if everyone would receive 0.5 ETH this would attract people that have never invested in an ICO and still fill out the survey. The thing with incentives in research is always that they should be strong enough to incentivize real respondents to some extent, but are not enough to encourage "fake" respondent.

Also, I think that the information you can receive from this survey is woth more than the ETH. But of course, this is difficult to grasp and may not motivate

Still: Thank you for considering the survey, any help is truly appreciated!