Maybe you guys sold buildings, then built some and collected resources?
I doubt it - yes, I imagine I might lose some points from selling two pottery buildings and replacing them with Blacksmith building - however I was already in the 1650+ point range when I did this conversion and I don't see how changing 2 building of 4 x 3 to 5 (now 7) 2x2 BS buildings would result in a net loss of some 300+ points.
I can accept this if I was still in the 1600's range, but I actually dropped all the way to the point count I had prior to my previous log (I never logged out, I just left and when I came the points were gone, along wtih the note on the new 500 diamond contest.
Seems to me that people that might not have been logged on didn't lost points since the data has been static, but those of us playing might have experienced a database change that didn't update to the latest transactions but to the previous last login counts. Something of that sort - I suspect. I would personally appreciate getting my 300 or so points back.