Lastly, the 75% is a bit of an anomaly. As you can see, the top model is only expected to return about 60% pre-tax. It's unusual that in live trading we have exceded the back test--2020 was a bizarre year and we also started after a big bear market so we benefited for a huge bull that year + nailed the June and September crashes (check the trade history). 2021 was a below average year by contrast, and over the long term, any algotrader should expect the live results to be a bit under the backtest as despite our best efforts (and I consider my anti-overfitting engine to be the biggest accomplishment here), all systems are to some degree overfit to past data.
Lastly, as I mentioned in another comment, I make no guarantees of always publishing this site and signals. If I decide in the future (perhaps once my account is to that 50-100M range) that the site is more of a liability for me than an asset, I may close it, with or without grandfathering. However, obtaining 1% of Seeking Alpha's userbase would be 5M+ per year in revenue from the site which is a few multiples of my current net worth. Even with a hypothetical 50M net worth 10 years from now from 40% post-tax, post-living expense returns, 5M is still meaningful. If we fail to gain that much traction, or the bot does so well that I hit that kind of figure much earlier than expected, I may halt the publishing.
As of now, and for the forseeable future, the site makes financial sense to me, and it's been a lot of fun, so it also makes pleasure sense for me. Life is about more than money of course.