Seem to be getting bogus achievement notifications

[cupcakezombie]

When I have logged in recently I have been getting a notification that I have a new achievement, but don't think I have actually got any/done anything to achieve a new one.
Let me know if you need more information.

[nikvoodoo]

As we're reworking the forum, achievements received previously are getting reassigned to those that earned them in the past. So think if them more as a friendly reminder of all the awesome you've earned.

[Kc]

When I have logged in recently I have been getting a notification that I have a new achievement, but don't think I have actually got any/done anything to achieve a new one.
Let me know if you need more information.

Yup, that's what it was. All is well :) They just re-calculated with the updates.