I have a Macbook Air with the latest operating system I think. I use Firefox as my browser. I don't have ad blockers but I don't get ads so I might have. I don't use video in my Medium stories. I use an iPhone to read stories mostly (and clap and comment) I have noticed claps disappearing from stories I know I have already read and clapped. I clap when I have read a story fully. And I'll have some lychee tea if you have it!