We have seen that a thousand time with google products and co. First, you have unlimited, then you have reasonably large limits. The rational is "limits are ne

We have seen that a thousand time with google products and co. First, you have unlimited, then you have reasonably large limits. The rational is "limits are needed to reduce abuses and should not impact normal users". Then, it starts to be mandatory to be authenticated. Again, officially for reducing abuses. Once everyone has an account, and are used to limitations, free limits are reduced again, little by little, and finally to the point where you need to take the "pro" offer to have a normal usage.