Perhaps they were using the address as a virtual office, in this case, there is nothing wrong in, even the biggest companies do the same. It could be the reason then why the lady mentioned in the article) never heard of about. You can visit the building you won't find anything related to kucoin. If then they moved to Singapore it's also a reason...
In the corporate world, when a business move from one location to the other, there is a procedures towards making that which include
1. You will have to notify the Register of Companies in that jurisdiction that you are operating
2. You notify the relevant tax authority for change in address because without that, it would be interpreted as wanting to evade tax liabilities that is why there is no notification about the new address.
3. There is usually a publication in a daily newspaper notifying members of the public concerning such relocation
4. When anyone gets to the old office within a period, there is always a banner signifying the relocation and even the current address that the business is now operating from.
Putting all this together, even though the business is operating in the crypto world, there is nothing saying that requirements 3 and 4 above should not be complied with couple with the news that they are not in any media to me is a signalling effect that everyone should be more careful in keeping funds with them. Again, since they are in Singapore, I believe there are several crypto lovers in that part of the world that can do a physical verification of their 'new address'.
