Changing the issue to per month seems like the easiest most sensible option. i.e if you share in any given month you are disqualified for that month.
I suppose an even more sensible solution would be just don't share serial's, it really creates too many problem's.
I agree with everyone with changing the issue to per month. Like ZigZag said, seems like the easiest solution.
I understand that sharing serials may make things complicated when it comes to pushing and probably more work in a report, but we're a pretty small community. Most of the issues can be solved without having to investigate too deep.
TBH, I didn't expect people to start ranting about "if you do it to them, then me too" so quick. Completely understandable, but selfish non the less. This was my topic, if you felt like you could've fixed an issue on your guys' part or arrange something then maybe it should've been kept in a separate topic. It almost felt like Olaf was considering it (I may just be jumping to conclusions) and may have even helped you with yours and Nathan's problem had you not started what people hate the most. Like I said though, I do understand you but please don't throw things in Olaf's face before has even done anything which is going to make him think twice about doing something reasonable to help a pretty harsh rule.