This always happens when the price is in a downtrend...The ones stuck in fiat who missed the rally from $100 are trying to get others to panic and sell so they can buy bitcoins for cheap...
Some of them are trolls and just want the attention...best to ignore them...
This sounds reasonable, but maybe they should get blocked for spamming or something, not sure how the moderation on this forum works
Why should they be blocked? if the posts are frequently occurring from a single user then it may as well be considered as spam, but if it comes from different individuals, why should they be banned? They're only stating what they think is the status of the coin, and that may be considered as they're own opinion. If you don't want to see those posts, ignore button works wonders.