What is your opinion on 'themed' cryptocurrencies, e.g. Dentacoin?

[ArmyJune]

Dentacoin (DCN) is a blockchain-based token offering blockchain solutions for the global dental industry. The token was first introduced to the public in February 2017 and was listed on various exchanges.

Dentacoin aims to align dentist/patient needs and interests in an effort to improve dental health care all over the world. Dentacoin will reward contributors with DCN tokens for honest reviews to connect patients with reliable dentists. It also seeks to remove the lengthy supply chains to reduce the cost of medication, coupled with improvìng health habits and nutrition.

With this concept, Dentacoin offers quite a lot of speculations in the crypto space regarding its future value. You can check out this coin at https://www.hb-wallet.com/dentacoin-wallet.

What is your opinion on 'themed' cryptocurrencies in general?