True, maybe he's swatting a fly...
Aside of tons of materials in which pain=power for the Sith, but sure, carry on.The idea that he's getting stronger by doing so is something you are making up, with absolutely no basis in anything.
For one claiming to care so much about the truth you seem keen on ignoring it when it suits you.
But pain does. This is Sith 1:1.
Did you ever watch or read anything about SW to begin with?
This is the most basic stuff for them and it's like you're hearing it here for the first time.