I've had my voting stopped on a couple of occasions. The last one was because I downvoted someone 3-4 times in a row in the same thread (all their comments needed a downvote :) it wasn't anything nasty) and my voting stopped working for a week or so.<p>I also <i>think</i> in the past I have had it removed for:<p>- upvoting different stories in quick succession (came back to the page to vote stories I liked....)<p>- downvoting the same person 2-3 times in the space of about 20 minutes in different threads (without realising I must stress!) with no other votes in between<p>It comes back after X amount of time.<p>&#62;  but I'm pretty disincentivized about bothering to spend time trying to add value.<p>Yeh I feel that; I read now but dont bother to contribute many votes.