This is how I see it: emotional strength in investment is a valuable resource that has to be managed and protected actively.
In certain situations it can help a lot to convert a position to a "house money bet".
In the specific options trading case I replied to, where the steadfast Tesla investor (
@PlaidCPA) sat through FUD storms and bear attacks, to arrive at a +2,000% gain,
and expressed anxiety about this gain and asked for non-advice, to me it's a no-brainer to invest ~200% of those gains into a more stable, more resilient emotional state, and continue with a +1,800% gain as a "free" house money bet.
But everyone is different - which is why I gave this as an optional strategy.