I never heard of this exchange, and others might also barely know it. Contrary to the FTX which has a lot of popularity and shill way before its insolvency, surely the public are concerned so does the media. FTX was also one of the exchanges that has a big trading volume. That explains the example of why its fall down is a contagion to the cryptocurrency ecosystem.

Back to the Decoin, I don't know how popular this exchange was, and how many users are affected. There is a reason why the media does not bring up this news. If you are affected and think the general cryptocurrency user should consider this theft or scam allegation, you should be the one who informed the communities in regard to it, after then it is up to the community whether they will resonate with the news or not.