I noticed you left out
BitMedia - It's definitely worth using. Unlike some of the others you mentioned, their traffic seems to be quite productive and not bot-generated clicks like some others.
Yes very true. Like as other advertising networks need approval for ad. Bitmedia also gives network ad not just specific ads. I have added Bitmedia to my
Best Bitcoin Advertising Network at No 3.
On your list of 'Best Ad Networks' A-ads is no 1 - this information disqualify your authenticity, or your knowledge in this subject.
A-ads can be good, only with HUGE traffic >100k/day. For little publishers it is worth almost nothing!