I was using an iPad mini and trying to heart a post someone made. It wouldn't work. Someone suggested I post that here.
Woah, it never used to work for me on any mobile device (including both my old iPads) but hearting posts now /does/ work on my new iPad 8 if I zoom/tap very accurately. Wild.
Idk what it's like on Ipad, but on Chrome on an Android there's an option for Desktop Site that you can check. When this is checked for Subeta, the site looks exactly the same but now you can heart posts and avatars.
I would think that whatever browser you have on the ipad (Opera?) should have something similar.
This a known issue and probably won't be resolved until after the new site layout is released. Feel free to post here, though: ! Mobile - Unable to Like HA,Post, Pet Profile