Chrome on Windows 7 is giving me the most trouble.
This topic for example: https://community.drownedinsound.com/t/rate-every-season-of-a-drama-series-you-like/7768/12
When I first entered that link into the reply box, the preview box displayed this:
When in the thread itself, replies are duplicating and replacing other posts, like this:
Sometimes when clicking on the reply button, to reply to a user's post, no reply box opens at all. I get the flash of a blue outline around the reply box, but nothing else happens.
When liking posts, the heart symbol turns red but the actual like counter won't increase by one. Sometimes when liking one post, the heart symbol of a different post will turn red. Similarly, when I try to reply to a post, often the reply box chooses a random other poster than the one I intended.
Some posts disappear and turn blank, like this:
Generally, the more time I spend in a thread without refreshing, the more things go wrong. Such as even the original post disappearing:
No immediate pattern between which threads go bust and which don't, but I'm getting something a little weird in the majority of them.