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I will say it is a scam. Read the whitepaper I wrote for them: https://steemit.com/bitconnect/@crypto-investor/the-bitconnect-whitepaper-maths-of-a-ponzi

When they open the site back up, I doubt they will enable all accounts. Their press release eludes to the concept they want to blame certain people for an exploit. The exploit being those people are withdrawing money rather than leaving it in the ponzi. I expect they will keep certain accounts banned, and enable other new accounts, and enable profitable accounts. They can keep their ponzi going quite a while if they are willing to screw over a subset of their customer base, while making excuses.