Then you can use whatever BTC address you have in some of your wallets, again they are the same, or generate new ones with bitcoin-wallets
Please give more details
For all the forks, as long as ppl control their bitcoin private keys, they also control the private keys of each fork. So what is the point of the software you linked, which allows one to "claim" their coins? I assumed that the software must also allow one to make transactions with it?
You are right, I could use an address for a fork for a BTC address I control. But the reason I have not is because 1. I was not certain that the address space is the same for all forks, but I suppose they must be (since changes, eg, to the bitcoin cash addresses is only related to how they are represented?). 2. I would not be able to do anything with those coins. So would be preferable to have them in a place where I could spend them.