What are trolls? Humans like you? This makes you a troll too, anyways we have different reasons why we build mining rigs, I personally build one for monthly income of which the money is going to a funding project ( not crypto project ), also I'm mining with the sun so even if a card gives 1$ only it won't stop me from mining
I always hear this 'I'm mining on solar, so it's free' argument. That's only true if you are 100% off the grid and store your power in batteries, or you live in a place that doesn't pay you for your excess solar power. If you bought panels specifically for mining and they are only hooked to that, there is a huge sunk cost that needs to be amortized against profits.
There are MANY opportunity costs to mining that miners always seem to conveniently forget/deny. If you spent $3,000 on GPUs and equipment for example and you have a mortgage or any other interest bearing debt, you could have used that money to pay down debt instead. You need to calculate present and future value, not just blindly add up profits. I'm not saying it isn't profitable, but it's not as profitable as many make it out to be especially IF you're buying cards specifically for mining (i.e. not just using already bought gaming GPUs).