An earlier version of this locked me out of a community for around three years when my iPad 2 was deemed too eldery to get support as the first instance I used switched to Discourse. It was only earlier this year that I had sufficient cash to buy a new iPad Air (4th gen).
And I’m now faced with Discourse, which is across half-a-dozen my new communities, being inaccessible from my still fucntioning iPhone 6S (limited to iOS 12). Not that it’s features are conducsive to my eyesight.