It seems more logical to be critical before investing precious mining time.

It's hard to see with tainted glasses on, elbow-deep in many watt's of mining power stuck in the back side of some alt-coin. I've been there

So no, did not sell any (Sadly, because these hyperinflated prices are quite attractive I must admit!).

Either way, your short and off-topic reply do seem to imply you have no valid response to my questions. That makes them even more valid and concerning.

newbies can only post in certain sections.

(like me )

Time will tell. Just like in real life there is the possibility of many coins, with one or two 'major' coins being the prime exchange medium of choice.