Over the years, I've seen various recommendations to use TinyCore, or other small distros as a great way to keep old computers alive and kicking.
Nevermind the fact that they run great on modern hardware too, but quite often that is the only "selling point" in reviews, and quite frequently touted as a great way to keep the machine out of the landfill.
"Saving the planet" with old computers is false ecology.
The "carbon footprint" to make those older machines in the first place is much larger than modern equivalents to start with. THEN, there's the power-draw, which can be up to TEN TIMES worse than a modern computer. Nevermind the power/performance ratio operationally.
So you really aren't doing the planet any favors. If I kept my wall-sized PDP 11/780 proudly running all these years as my sole computer, the harm I did to the planet would be immense - even if I could afford the power bill.
What concerns me about recommendations to use TinyCore with older computers is not so much with the one-off machine dragged out of Grandpa's closet, but something more problematic.
My main concern is the temptation to divert e-waste, and try to reintroduce gas-guzzlers back into the ecosystem - all under the pretense of ecology. TC and others are quite capable of providing that life support to these ancient things that should have been shredded long ago.
It's a sad fact of today's world. E-waste diversion, like supplying "rejuvenated" toxic lead-acid batteries to the underpriveleged, is likewise bad for a number of obvious reasons.
All I'm saying is that when plans to make tiny linux distros the "planet savers of the people", think again.