Not every venture needs a blockchain, and not everything needs to be decentralized. This might seem obvious, but with all the hype around blockchain technology and its disruptive potential, it can be easy to latch on to an idea the moment its whitepaper mentions a large industry the project is purportedly tackling.
Even projects that require cryptocurrencies as payment (e.g. Steemit, which rewards writers on its platforms with a native ?digital points system, Steem) could very well survive with existing cryptocurrencies like Bitcoin and Ether.
When evaluating an ICO, a good first question to ask is: ?Do we need a blockchain or a native token for this project? If the answer is no to both, chances are the ICO project is an example of solutionism crypto for cryptos sake or a scam.