The blog comment support approach was acceptable 15 years ago. It's still acceptable today. I don't remember whether or not I filed an appeal afterwords, but Rejection has been overturned. I'm not the one violating guidelines. The blame should go to the reviewer who cuts corners by relying on bots with no eyes.
I've published 20+ apps
This submission was probably my No. 400.
Topic:
App Store Distribution & Marketing
SubTopic:
App Review