1) The prime evil in my mind is this rule:
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Don't double-post.
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I certainly consider myself serious, but I am also serious about a computer vision project right now, and some other design projects.
And I need some time to let things settle a bit and look at what my image looks like several times to find things that are wrong with it, at least unless someone else points out the flaws.
And by that time the thread may have dropped.
So, if I have an update, then according to the forum rules I am free to edit the post with a zillion updates, but no one will ever see it.
Wouldn't it be better to allow returning to a piece some time later by double-posting if there is an update?
Or, to avoid a one-person-thread, to allow to delete the posts with the updates that expired without response? Maybe it was just me, but I couldn't find a delete option.
2) Thanking system will add clicks that waste time in my opinion.
3)
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(I mean, the thread with all those awesome crits that have been ignored)
About the examples taking too much time: is it really necessary to prove that your version is better, or is it enough to just clarify some principle that you think could improve the image in question?
4)
Trying to reuse a classic pose for a dragon.
Not exactly the same pose as in references, though, I might have messed it up.
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Guess what, that yielded some response,
but 0 about the pose or composition.
(well, it did yield something useful, which was an obvious need for preemptive clarification about my intentions with the image)