Many people became interested in crypto after the bullrun start, many people want to earn money after they had heard about bitcoin growth. I don`t think it`s a good index, but new people come to crypto and it can help make crypto more popular and demanded
Well people only jump in when the opportunity of earning money is already there. The sudden flow of new crypto users happened on bull runs where people talk about crypto more often. In the past Bullrun like in 2017, I have many friends who got interested and tried using crypto for profits but when the correction happened, Most of them stop using it and totally abandon it. But on this year's bull run, Most of them got back and shocked by the recent crypto prices. My friend regrets abandoning crypto for years and I think this can result for them to use even when the bear market comes.
Different people have different views - some got encourage into crypto just because they see a friend or a social media post bragging (well some might have the caption "not to brag but to inspire") and they want to have same opportunity - some of these continue risking their last cents some even borrow money hoping to profit soon but others just stop when they know there's no assurance they will profit in crypto and at worst case scenario their capital might lose. Same with people who already engaged in crypto there are some who never lose faith and just close their eyes during fall and celebrate during bullrun and others have weaker hand who will just dump their asset when they see markets are red. Crypto is a world for people who are courageous and willing to make research so he can somehow pick which project has potential.