250x reward looks sweet but risks are bigger than the old days. Considering the new part of decentralized exchanges old version of exchanges can lose their reputation in the smaller time frame.
Uh, the risk tied to Bitcoin has never been as low as it is today. The 2015 bear market was scary as heck, while the current bear market with the improved fundamentals offered me a fantastic buying opportunity. People's confidence in the market reflects that too, because regardless of how hard we fell last year, there was still a lot of optimism, while in 2015 there was no such a thing at all.
Not investing in Bitcoin is a way bigger risk than investing in it. Even if you don't like it, but secretly think there is potential, owning a few % of it won't cause you to go bankrupt would Bitcoin go to zero overnight.