Signature posts will be counted at the end of the campaign, at that time you need to have an average of 15 posts/week. It doesn't matter if you have 10 in the first week and 20 in the second or the other way around, you just need to have 30 posts to receive stakes for both weeks
Specify how many messages you need to write, please !!! One rule is written in the rules, you say different ... and that we will not lose?