Since age discrimination laws only protect discrimination against people over 40 (you can legally exclude people for being young), I've thought it may be interesting to use this explicitly.
If age discrimination is actually happening in tech that means there is a large amount of people 40+ that are not being properly valued in the market.
It'd be cool to explicitly target these people by having jobs ads only for people 40+ (and it'd be neat to have mentorship of younger hires be a component of these jobs).
No idea how that would work out, but seemed interesting to target for recruiting.