Hi @steem-agora, thank you for publishing your post, at least there is some information about what is happening with SBD that is what I found in Internet:

Upbit has designated Steem Dollars (SBD) as a cautionary item and announced a temporary suspension of deposit services to protect investors.

If you do not mind I put here the translation of the paragraph from your post in English (google-translator):

@steem-agora:

I contacted ayogom, a witness who has a channel with Tron, and he explained it to me, so I'm posting it here.

It is said that Justin's visit to Korea was also related to Upbit's designation of Steam Dollar as a watchlist.
Upbit raised the issue of Steam Dollar with the foundation, and Justin visited Korea to clarify the issue.

We all hope that SBD will be back to its strength and that Steem gets stronger.

Using this opportunity I wanted to wish you Happy New Year and many happy moments for you and your family!