A person can make five stupid comments in the same thread, in which case they would deserve five consecutive downvotes. (Making ten or more stupid comments in the same thread seems unlikely. Unless it’s a troll, in which case their karma will become negative either way.)
By the way, I don’t remember seeing five stupid comments by the same person recently, but it seems to me that a year or two ago it was relatively common, e.g. in political threads, where people kept replying to each other and refused to give up.
A person can make five stupid comments in the same thread, in which case they would deserve five consecutive downvotes. (Making ten or more stupid comments in the same thread seems unlikely. Unless it’s a troll, in which case their karma will become negative either way.)
By the way, I don’t remember seeing five stupid comments by the same person recently, but it seems to me that a year or two ago it was relatively common, e.g. in political threads, where people kept replying to each other and refused to give up.
X=5 N=120, perhaps?
That allows up to five stupid comments from the same poster to be downvoted in rapid succession, but makes it a lot harder for the mass downvoter.