The 2017 bull run was based on hype that was why shitcoins were able to give more profit because they were cheaper and people bought it based on the huge hype in the market then
But the next bull will be quite different from that and it will be based on real life usage and adoption so any project or altcoin that doesn't offer real usage or solve a problem will beat the dust.
In bull run a lot of stupid money gets in and they will also found useless projects. That is how it is and I doubt it will be any different in 2021. We need to survive sideways 2015 and then in 2016 party will slowly start.