Bid based upvoting bot becoming useless

Hello friends i really don't want to talk about this but lately bid based upvoting bots are becoming totally useless. Because of it's popularity upvoting bot's are giving minus upvotes. I'm using upvoting bot because it's giving me like 180-200% profit but now if use upvoting bot it's giving me like -10 -30% and i'm totally off profit.

Let's start what's these bots thing incase you don't know

In Steemit there is upvoting , resteeming bots are exist. These bots are made by someone like who have lot SP or who have lot of delegators , i mean upvoting bot. there is few type of upvoting bot's are exist.

1. Vote selling bot- Bot that can buy your sbd or steem gives you certain amount of upvotes. Popular one is @minnowbooster,@randowhale .

2. Subscription based upvoting bot- This is quite interesting service you will subscribe that bot with certain amount of sbd or steem and in exchange you will get like 30 day of voting service not bad deal right. Popular one is @blockgators .

3. And last bid based upvoting bot- This bot gives you upvote based on bid, for example bot vote worth like 4$ and you send 1 sbd and someone sent 1 sbd then you guys will divide bots voting weigh and each one will get 2$ but it's not your true profit lot of people don't know curation reward.
Curation reward -is reward for your curators i mean upvoters. For example your 2$ that get from bidding bot will divide like this (2-25%)=$1.5 and it will divided SBD 75% and SP35% currently so your Net profit is 1.125 SBD.
with your 1SBD you got 1.125 SBD that's like 12.5% net profit.

It was hard to use bid based bot before but now it's lot easier than before thanks to @yabapmatt for bot tracking tool

We can see all type of bots in one website -https://s3.amazonaws.com/yabapmatt/bottracker/bottracker.html#paid

But It gives us some flaws...

Reason today i'm talking about this is due to upvote tracker it's getting more popularity and lot of people are using upvoting bot lately. In some case it's good for minnows like me and you getting hard time to find upvoters, we can bid some sbd and make some profit using upvoting bot. I think it will help a lot for minnows since wales are almost not upvote your post or articles.
But now it's becoming useless if you use bid based upvoting bot almost 70-80% chance to getting upvote with unprofitable or minus upvotes.

So why this happening....

I think 3 reason for that
1. Popularity- As i told before lot of people are using upvoting bot to promote there post or getting some upvotes.
2.People who don't know how to bid or bad at math- I saw few times some people are sending SBD with higher than that upvoting bot. For example bot vote worth like 4$ then some people send like 6 SBD wtf is this in my perspective i can't undrestend how these people are thinking we have bot tracker there and you can see value of bot in "vote value" section.

3.People who bid in last minutes- People are thinking if they bid in last minutes they have chance to get some profit but they don't think lot of people think same way. Because of that in last minutes lot of people sudden bidding in same time and it helps for upvoting bot unprofitable.

Solutions

Don't bid in last minutes but this won't happen after all so i think the better option is for bot creator plz create bot with stop bidding when profit reach 10% i'm not programmer but i know little bit thing of programming so it's easy for make some bot with stop bidding options when it reach like 10%-20% profit. I know you guys are making these bots for helping minnows so don't be greedy you guys have lot but we are not. So if you are helping minnows help for real. And some people need to stop bidding like 50 SBD dude give a chance for others seriously.

And lastly @aggroed @msp-bidbot eat my 0.4 SBD i know it's not that high but for me it's a lot plz make bot with refund option not just me lot of people lost their money using your bot. If you see my post plz resteem and help to reach bot makers thank you