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randofish is 56 cents by now (100% upvote) and you receive 25 other upvotes which are also 10-30 cents at the moment

That sounds alright. You have more than a 50% of being up on the deal.

No sir. He's giving you the best case scenario. Don't be stupid.
The bot is gonna leave an upvote between 1% and 100% not 100%.

I understood your "problem". That is why I changed the value to 20-100%, so nobody will make total loss.

Ok let's crunch some numbers. Assume that the percentage upvote is completely random, you will have an expected payoff of 28 cents (56 cents*50%). Now, lets add 20 cents from other upvotes (mid-point of 10-30), that gives us 48 cents. If we adjust for @randofish's current SP (75%), that gives us 36 cents. If we take out curation, that gives us an expected value of 27 cents (25% curation). 27 cents is greater than 25 cents, that would be a conservative estimate. There will be times that you will get less than 25 cents back but you will get a minimum return of 10 cents (7.5 cents after curation). On the other hand, you could get up to 86 cents (64 cents after curation).

I think it is worth the risk. I got a 1.93% upvote from @randofish today but I think that was just bad luck. I will continue to support @randofish. The randomness adds a bit of fun, will I win or will I lose?

Well said, randomness is what makes this a bit exciting -- and 0.25 is not a big deal to waste, anyway.

Yeah right. What is the chance of getting 100? The upvote is gonna be between 1-100%. That means the minimum is gonna be less than a cent! Randowhale's minimum upvote usually returned the whole fee and if you were lucky, you would get more. This is a rip-off.

look at the comments of randofish, you will see the percentages... youre totally wrong! Most users (not all) make profit...

I did. Most users(not all) are losing.

That is not true! You forgot the 25 Upvotes from the votingtrail. But never the less - just do not use randofish, if you dont want to...