Its a shitcoin that is being airdroped to those who spam how good marine coin is,same thing that happened with deeponion few months ago here...Those coins airdroped to thier spamers like 97% of total coin suply so people spam here thinking that it might worth anything 
Hello, please do 1 transaction of .MTC. and tell me if you don't get impressed by its speed and nil fees. It is available for purchase for 1 sat on their exchange. They have also made it unfriendly for miners. You can try mining and find out. And then please tell us if you continue to feel if it is a "shitcoin".
Not to mention growing collaborative community, free distribution of 95% supply, AI maintained blockchain etc. are additional points to consider too.
Regarding the spam messages, since the airdrop is maintained by an AI engine that makes topic and message suggestions, some of it is of low quality currently. Dev has incorporated feedback system in the AI to improve both based on suitable "Report" buttons that airdrop seekers can click when claiming the airdrop.