One of our members enquired about magnifying the text on her iPad when using the forum, and I looked into this.
It is possible to pinch to zoom, but for something more systematic, I wonder if it’s practical / desirable for Discourse to support Apple’s custom CSS for their “Larger Text” accessibility feature? (Settings > General > Accessibility > Larger Text)
Implementation details here:
If vendor-specific CSS is a no-no for Discourse, I’m sure there are other potential solutions for user-specific font size adjustment.