I also don't use bid-bots to buy huge upvotes, because to buy huge upvotes, you need to have huge amount of Steem or Steem Dollars (SBD), and I currently don't have either of them.
Probably even If I had, I still wouldn't buy huge upvotes.
I only used bid-bots a few times and with small amounts.
I registered on Steemit on 2017 May 17, and my current Reputation is 54.163, so I know what does "working hard to earn your reputation" means.
Good luck for reaching 70 Reputation!
Yeah man I also use only the small Bid Bots to Garner some attention and that's all I do. I rarely use the big Bots.