Well put. There’s the adage that says don’t judge people as you have literally no idea what they might be going through. In this case you have no idea why they did a stint in crypto. Now, if during an interview it’s clear that someone has a strong ideological connection to crypto (or anything really), and you want to foster more of a “make it work“ engineering culture, then by all means don’t offer the position. Excluding people based on whims like this will not set your company up for success.