Reading the comments and OP, DESERVED!!! You all skipped the most important part: 3, 2, 1 backup rule. Basically, you all were using Backblaze as a centered backup system, what do you think it was going to happen??? You do not backup data and call it a day, you must have a process in place to go there and check random files and folders for corruption. This process would have warned you that the sync was not 1:1
The thing to empathize here is those who purchased these retail Backblaze plans fell into two buckets:
1. The technically savvy who were following the industry standard 3, 2, 1 backup rule, arbitraging the "unlimited" plan, waiting for the game to be over.
2. The technically unsavvy who believed in the "unlimited" plan
My bet is that 2 is screwed and that's majority of the users of this specific Backblaze plan.
This is likely to have rippling effects on Backblaze including their unrelated, object store plans. When there are choices available, people don't appreciate being ripped off and right now, there are a lot of choices in object stores.