I don't think I saw drops that big ever. Ok, screenshot your post value at it's peak and again on day 6 or 7. I noticed some drops, but I don't post as often as you do. It looks like they are correcting value in line with market value, but only on the down side; I have never seen it go the other way. Only one way to find out; gather the evidence on both post value and market value. If the drop matches market activity we'll know more.