Welcome back! And thanks for coming back - many people do not read stories more than once, so you're in the minority there. You're more than welcome to disagree with me on any point you like, disagreement is not a bad thing. I have plenty of writers who disagree with me on lots of things and a big part of the comments section is having a bit of back and forth and finding out new things, defending my ideas and engaging with opposing ideas. That's how I think Medium should operate.
You're welcome to delete your comments, you're also welcome to leave them there. When I wrote about deleting comments - that was from the point of view of the author of the original article. People who comment are welcome to come in and delete what they've written if they want. The reason I won't touch comments is that it's important for everyone to see that there are people who agree and disagree with me - or in your case, people who initially disagreed, but now after re-reading and reflection partially agree.
There are plenty of places on Medium where there is mountains of agreement. Writers who specialise in writing articles that their readers whole-heartedly endorse. I do not want to be one of those writers. I think people should be challenged and kicked out of their comfortable thoughts. Opinions change, that's not a bad thing - I'd argue it's a thing to be celebrated.
And that's why I'm glad you're back. :o)