I'm PJ. I learned programming on the old PET, C64, ZX Spectrum, and Atari computers back in the day.
I'm happy to help with the proofreading on the awesome C64 wiki (my qualifications are that I've written and edited 75,000+ word novels, user guides, etc).
It's great to see that people are getting together all the hard-to-find information in one place, and I hope to make a bigger contribution in the future!
Feel free to message me.