It is possible the first downvote tends to attract further downvotes (by priming, for example), but an equally parsimonious explanation is that there are several people refreshing the comments page at a time and a subset of them dislike the content independently.
It is possible the first downvote tends to attract further downvotes (by priming, for example), but an equally parsimonious explanation is that there are several people refreshing the comments page at a time and a subset of them dislike the content independently.