The Slow Death of Bulk Unfollow

It's getting more and more difficult to unfollow people on Twitter. Have you noticed that? Months ago, the site itself did away with any of the doohickeys that would have let you easily see all of the people who follow you (or don't) and how long it's been since they last tweeted. But that didn't stop social media celebs from bragging about using outside forces to unfollow thousands of Twitterers when their streams got too heavy. That was last year.
Today one of our members was in the middle of a "bulk unfollow" on Twitter Karma when a pop-up message announced that "On January 15th... " Twitter informed Twitter Karma that the bulk unfollow function violated their terms of service. Minutes later, the owners of Twitter Karma tweeted that Twitter had told them to take the button down. The guys who run TweetLater saw this coming last July.
Does anyone remember Qwitter? For a while, it was the hottest thing going for Tweeters who didn't want to follow anyone who didn't follow them back in return. Now don't be mislead- Qwitter was never stable or reliable. It was a lover who called when he wanted to. You wouldn't hear from Qwitter for weeks, and then it would dump an avalanche of "quits" in your inbox. But at least Qwitter was on the case until sometime last year when, for no reason at all, Qwitter stopped calling. The creators who live in Ireland keep the page up, but don't bother. It isn't working. Neither is Twitoria. Whether those sites got the same warning as Twitter Karma or whether staying "free" just didn't pay the bills, many Twitter users are having a harder time managing their accounts than they used to.
There are still some other bulk management tools out there. But many of them aren't able to handle the demand and have stopped accepting new sign-ups. There are options, though, for people who use various Twitter clients like Tweetdeck and the like. But today we want your opinions. Does not being able to mass prune your lists affect the way you use Twitter? What Twitter tools do you use to manage your Twitter stream?