We've previously discussed our efforts to defend Twitter against spam. We are making progress—there are bugs while we find our way—but we're making progress too. Recently, we've seen significant impact by introducing limits around how many accounts can be followed on Twitter under certain conditions. These limits are designed to not affect the vast majority of users. However, some people (who are not spammers) have (and will) run into them. We want to shed some light on what we've done and why.
A Work In Progress
First of all, let me note that these limits are still a work in progress. We've had some bugs in them that are still being worked out. And we need to tweak them to adapt to what we learn about our ever-changing system. However, it's clear from our vantage point they've already had a very positive effect in reducing (though not eliminating) the most common type of Twitter abuse: "Follow spam."
What is "Follow Spam?"
Follow spam is the act of following mass numbers of people, not because you're actually interested in their tweets, but simply to gain at ...Read the full article