Good UX depends on audience and context. Many things are widely shared precisely because they give the user something fun and unexpected.
For people who work with computers all day, being online is more perfunctory, and the pleasure of seeing something fun/different rarely outweighs the annoyance of the interruption or of having to figure out an unconventional UI. But that's not everyone.
For people who work with computers all day, being online is more perfunctory, and the pleasure of seeing something fun/different rarely outweighs the annoyance of the interruption or of having to figure out an unconventional UI. But that's not everyone.