The best bot is one you personally concieve. If you can make bots yourself, there is little change you leave a footprint. Bots that make absolutely everything for you just don't exist. The best chance is to make a bot, or some tools, that can make your work semi-automatic. You can, for instance, make a tool that will help you fill out forms to create youtube accounts or others to vote on multiple videos. But the best shot is that you can make your own tools and perfect them afterwards. If you construct them you can make little changes over time to make them perfect. The best work, is always the manual work. Always. But, if you can get some scripts to make your manual work more easy (turning into a semi-manual work) you can get the best shot at getting some long term, unbanable results!
The tool I use the most to help me out in my taks is Imacros. It is a easy, FREE (imacros for firefox) tool to help you with your online work
