We ran into some heavy performance problems with the site yesterday evening. Our server admin checked into it and found that the problem was related to heavy queries on the server involving tags.
So a command decision had to be made on fixing the issue. Rather than weigh down the performance of the site until we got it straight we decided to temporarily turn off the tag functions until we knocked out the problem. We hope to have all tags restored shortly and will give an update when that occurs.
Thanks for your patience 🙂