Question: Do you use reprint characters for something?

So you probably know that some goldenage public domain heroes got reprints where they had a different name and maybe different colors (and maybe even a different designs) and so i ask you, Did you used them for something? and when yes how did you use them?

Here some examples you can look at:

https://pdsh.fandom.com/wiki/Atomaster

https://pdsh.fandom.com/wiki/Green_Jet

https://pdsh.fandom.com/wiki/Jetman

https://pdsh.fandom.com/wiki/Mask\_(Star\_Publications) (The biggest Wtf reprint)