Sad news for sure. Been a great 3 years though, and excited for whoever comes next! Definitely hope Clara sticks around.
It's sad when an actor leaves, but what will be even sadder is when the fans in a year from now will say stuff like Matt Smith Sucked as the Doctor. It seems like that's Dr. Who fandom in a nutshell, when a doctor or companion leaves, the negativity comes out.
What do you mean, "when a doctor leaves"?
That should probably have said when the new Doctor arrives. When the Doctor leaves that's more of a sadness, but when we meet the new doctor, I always see the "this is the best doctor ever" posts. The best example was when Tennant was in the prime of his run, people loved him. Now, I get the sense he's not fondly remembered. And let's not count how many instances there's been of bashing RTD because of Moffat lately.