I love these trends, but I think your data doesn't represent the fundamentals completely correct. The number of posts shouldn't be the only measure for skyrocketing. E.g. HF19 may have introduced a lot of 1 sentence google photo reposts as well as many new users who may think this is the way to go. These 1 sentence reposts are not adding any true value to the platform while weighing just as much as a good post. Could you implement an average post size or average characters in a post to shed some light on this?