There's plenty of ICOs that already have working products, if that's what you're asking. Steemit currently has the most value of any network with the most transactional volume of any project out there according to
http://blocktivity.info/.
there is no useful product from Steem! they have a centralized platform which encourages people to spam and get paid to do it. if Stemit was decentralized form of Reddit and worked purely on blockchain technology then it could have been a good product but it is not! it is a centralized website which happens to pay you in a token.
and by the way having larger number of transactions alone doesn't make it "more valuable"
not to mention that the real value according to https://steemdata.com/charts is 325 TX in last 24 hour not 1.5 million and the highest amount is 3200 tx in 24 hour! never mind this part, it seems like the date is old on that source!
Physical world examples include OriginTrail, TE-Food, or CyberMiles that are providing real-world merchants a decentralized service.
i am not familiar with any of these so you have to help me out here.
where are the merchants that are accepting these? where can i see these merchants? what can i buy from them? where can i get these tokens from? and why would i want to choose these tokens over fiat or bitcoin for paying these merchants?
Bitcoin was built on 30+ years of work and still had major bugs after 4 years.
bitcoin has never had any major bugs to this day, there were small bugs that were found in first year and solved easily and fast but nothing major.
and it is not 30+ years. 35 year ago the idea of cryptocurrency started but the real work was done in 2009 by Satoshi and with bitcoin. the time between 1983 and 2009 there were no significant work done!