Yes there IS something written that says you can't do this:
From the terms of service:

17.1.3. Use any robot, spider, crawler, scraper or other automated means or interface not provided by us to access our Services or to extract data;

You are using (hiring) a robot to access the Service provided by the Steem blockchain.

You don't want to be downvoted, then dont violate the terms of service. Also: begging for upvotes - not good form.

I actually support @grumpycat and hope other whales take the lead in combating robots - steem is supposed to be a 'proof - of - brain ' concept, and robots are making the playing field crooked, especially for people from countries that could never afford this type of promotion.