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Yes, I guess it is going to be too much work after a while. Takes a lot of commitment, but it was also to give some value back to the community etc. Thanks for the tips about bots, seems like most of them run the same way, i.e upvote every 2.4 hrs. Is @khoa your initiative?

Yes , my bot run 2.4h

Ok. Thanks @dang007. Seems like @khoa is operating smoothly. So how do you start with a bot. Is it something you buy or do you have to program it?

https://steemit.com/tutorial/@orionsbelt/tutorial-how-to-run-dr-otto-bot-used-by-booster-bellyrub-discordia

you can read here, i set up my server from google cloud they give u free 1 year try out before you pay. Read that if u have any question let me know in steem.chat

Thanks! I am going to check it out now:)