Sadly its quite easy to write a bot. (Even without experience)
Vote Bot: https://steemit.com/hacking/@seagul/steemit-vote-bot-like-wang-for-introduceyourself
Post Bot: https://steemit.com/hacking/@seagul/steemit-post-bot-like-wang-for-introduceyourself
Yes it is only a few lines of code. But that is the great thing about Steemit and that is why so many different things are already built for it - because you can interact with it so easily. But it also has a negative downside as you see. After you posted this... all the bots happened. But I guess it could also help people to learn how to get started with bot development. Maybe there could be a test platform where they could play around with it so they wouldn't spam the actual platform...