agreed with niothor.
This is just a reminder to those who might have forgotten or those who are new to bitcoin.
Rpietila is shouting doom and gloom all over the forum, but until the beginning of the year he was predicting a bitcoin valuation of several hundred thousand USD. That was whilst he was in a manic phase, during which his behavior on these forums, as well as in real life caused much sensation and is well documented for those interested in using the search function.
He was subsequently involuntarily hospitalized in a psychiatric facility, diagnosed with Bipolar Affective Disorder, with multiple delusions of grandeur. He now seems to be in a depressive phase of his illness and is spreading doom and gloom on the speculation forums. Either that, or he has sold just before we hit 1000 and is now regretting his mistake.
Either way, thread carefully with him
That's the cheapest form of attack. You try to discredit the person instead of attacking his actual arguments. Ad Hominem is a very low debate tactic. Maybe he has a mental illness. Many people have. It doesn't mean they can't make significant intellectual contributions.
I tried to attack his arguments, but he deleted my post (and not only my) from his moderated thread.