Bitconnect does not have a trading bot, they are just a scam like all other HYIP, the only difference is that they are more advanced. The days they don't give out interest are the day when Deposits to the platform are low. Principal is locked and no profit to withdraw. That's a strategy that will help them stay afloat a bit longer than other.
Wait until first initials deposits expire (around 239 days since most did not invest more than 5k in the beginning) then we will see if they will keep paying. Few more months left.