Hey, love the work here. I was wondering if Explosive blast damage scaled with attack speed, didn't see it mentioned anywhere in the thread. I'm also curious if other skills with CDs are affected by attack speed (earthquake, seven sided strike).
In general, not at all or very little.
For Explosive Blast - Chain Reaction the time between blasts of a single cast is scaled with attack speed. That doesn't really change much though, it only front-loads damage by a bit. In total you are still hitting three times per cast for the same damage as before and cooldown is the only thing limiting your ability to cast it more often.
EB is a secondary animation spell, so attack speed truly has no effect whatsoever on cast rate.
Other cooldown spells like for example Black Hole are primary animations. That means casting them takes a period of "one attack". And how long that is in seconds, depends on your attack speed.
So the first cast is faster with more IAS, but again it doesn't actually affect your DPS with that spell. It's only a minor factor in mobility maybe and again front-loads the damage by a fraction of a second.
This is true for most spells which have a limiting factor other than attack speed. Like Blizzard or Rend which do not stack. More IAS makes you cast them faster, but you don't really get any benefit from it.
Only very few spells include attack speed in way other than "you can now cast/hit faster". For example Barb's Sprint - Run like the Wind includes attack speed in the total damage calculation of each individual tornado. As the spawn rate of tornados is not affected by attack speed, this makes tornado DPS scale with attack speed "regularly". But in fact the mechanic leading to that regular linear scaling is quite exceptional.
Off the top of my head I can't think of any other noteworthy examples, but there probably are a few more exceptions and special cases.
Regarding the skills you mentioned. If have not personally tested either one, but:
Earthquake doesn't scale with attack speed (see spreadsheet linked in https://us.battle.net/d3/en/forum/topic/12329703286
- best source for Barb mechanics).
Seven Sided Strike I don't know, but I would be very very surprised if DPS did scale with attack speed. The only kind of scaling I can imagine for that skill would be something similar to Chain Reaction. That maybe IAS shortens the duration of the animation.
I don't suppose you have any work on or interest in working on other classes?
Some of the things I know are universal to the game and many at least enable me to make educated guesses. But I have not spent a significant amount of time or effort on researching the specifics of other classes.
It's not at all that I have no interest though. I could see myself doing this as a job. But someone would actually have to pay me for it then.
To learn everything, stay up to date with patches, re-test and verify stuff, takes a significant amount of time even for one class. Doing it for more than one or even all of them would be quite difficult. Even if you skip answering questions and reporting/documenting bugs/mechanics (which would kind of make the whole process of becoming an expert quite pointless).