The DS family (at least the DS/DSi) gets kicked from any site using Let's Encrypt as soon as it broadcasts its browser version... for whatever reason (I think it's game systems in general, as it occurs for most of the Xbox and PlayStation family browsers too, which STILL make up 15% of the total traffic on the 'net.)
So some members (including me, as I use the DSi's neutered version of Opera. And no, I don't have an Android nor an iDevice I can use instead.) may find they cannot access the site any longer. Of course, you could implement an alternate HTTP-only version of the site, but that would be EXPENSIVE. Even then, the site needs fixed before we do this sort of thing, that way it's not a pain in the ass to fix broken pages and screwed directory structures.