Your anticipation that bitcoin prices could reach $500k in the next 4 years seems to support why guys likely need more aggressive bitcoin accumulation methods beyond their signature campaigns.
Guys used to brag about earning bitcoin for free, and I am sure that guys still feel that way, and I used to frequently suggest to earn as much income as you can and buy bitcoin with your extra money, which will help to accumulate way more than expecting ONLY to buy bitcoin through the signature campains.
Guys can do what they like, yet to me it seems that some guys missed a lot of great opportunities to accumulate way more bitcoin based on their aversions to buy bitcoin rather than earn it.
I think I would rather buy and accumulate more Bitcoin rather than earn it. As much as being optimistic about the Bitcoin I would rather want to accumulate more on a consistent basis and be more aggressive in my Bitcoin buying.
It's important you earn from more sources of income instead of undermining one with the hope of maximizing the other and I think that if you have more income sources, then increasing your aggressiveness would be easier. There are several ways people can earn Bitcoin beyond signature campaigns. Some people work for companies that pay in Bitcoin and they still earn it and can increase their aggressiveness from there. I would love to work skill based for a company that pays me in Bitcoin. It would be easier for my stacking.
It doesn't matter if you earn it or you buy it, as long as you're increasing your income in whichever currency it comes and you use it to increase your aggressiveness in acquiring Bitcoin, You're still on the right path.