Just like you, I used to talk to myself in GitHub issues too. I stopped because my repos then were public and I thought it would be weird for people to see me do that when I eventually open sourced/brought on help. But after reading some of your posts and looking at your issues, I've started doing it again.

GitHub is a really amazing way to store information and it really didn't make sense to move discussions of those kinds elsewhere. The context gets easily lost when a lot of these 'self-discussion' was a simple one-liner like 'I found this bit on SO that refuted X'. I saw my thoughts evolve over several days as I uncovered new information and added it to the issue.

Thank you.