Increasing the popularity of some Twitter accounts by massive automated retweets is not supported by RoundTeam. This action confuses local Twitter trends, local "who to follow" suggestions and other internal mechanisms, and is classified as spamming. We blacklist Twitter accounts in RoundTeam to stop massive automated retweeting. After a Twitter account is blacklisted, nobody from RoundTeam is able to retweet its Tweets.
You may also blacklist your own Twitter handle if you want to prevent others from retweeting you using RoundTeam.