Who are these new people posting? I saw that vid on reddit too but he obviously doesn't understand how it works. Bitconnect doesn't care if people start withdrawing their deposits as they are all covered. When people withdraw at this time, both the investor and bitconnect will have made profit (people put in more BCC than they get out even including all the interest when lending because although they have increased their capital amount in USD it is less than they would have got just holding their coin). Bitconnect are sharing the profits from the coin increase with those lending and only the coin holders should have any risk if they set it up correctly. By the way, I just saw some video with this guy:
https://www.youtube.com/watch?v=nucXgUQcsoo and it was incredible how he was getting like $200 an hour almost coming into his lending wallet from other people depositing lol