The poll has 33246 total votes. This is important. Why?
Studies found that with a sample size of 10.000 people you can achieve almost ~99% percent accuracy in some situations. Link for proof
While 99% accuracy I think is not achievable for the crypto market (I'd say about 60-70%), I do believe that at least some of those first top 15 coins will really boom in 2018. So trade wisely and keep an eye on them.
Also, you know what trading sites where you can trade with "virtual money" do with the data they produce? They sell it for others to make predictions or they make predictions themselves.
Wikipedia -> Collective Intelligence -> Predictive Ability:
"On the basis of such evidence index funds became popular investment vehicles using the collective intelligence of the market, rather than the judgement of professional fund managers, as an investment strategy"]