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Hi, @Imransoudagar. I am new here, what exactly does @randowhale do? Like what is his purpose? Looks like a bot

Yes it is a bot. It is a Upvote bot, if you send 0.500 Steem Dollar and the link of your post then it will Upvote your post.

Normally one upvote from Randowhale will give you an upvote of 1.2 Steem Dollar.