Apparently, IT Security places limits on the number of votes I can cast in one day. This limits participation on the site. Now that I've reached my vote limit for the day, I find myself quickly losing willingness to read other questions and answers and contribute. If not the vote limit, I would have continued reading and contributing.
One of the reasons I participate on the site is that I know something about the topics, and I feel I can contribute: sometimes by answering a question myself, if it does not already have a good answer, but more frequently by upvoting other good answers that already exist. I feel like I am doing good for someone and doing a public service. Once the site removes my ability to contribute in that way, I find I have little motivation to spend any more time on the site or look at any more questions or answers.
I don't have a schedule that lets me check in to the site every day. Instead, my participation is bursty: when I have a little time, I try to check out a whole bunch of questions/threads on the site. However, the site's low daily vote limit does not seem designed to support that kind of participation.
I'm sure I'll be back at the site again sometime, but I'm just pointing out how the design of the system discourages contribution and causes at least one user to walk away. Seems like a dubious design decision to me, from the perspective of user experience and building community.