The purpose is not fully clear, but the account names suggest that the operators hope for STEEM/SBD bids or transfers accidentally going to these accounts. Given the follow-operations, it could additionally be another approach to gain lots of followers for a resteem service.

While transferring we get suggestions to select recipient from our follow list. So, one may not notice they are sending money to the lookalike bid bot/exchange account. This bot net is hoping for this mistake.