Does this answer your question?
lol, I already knew the answer to the question.
(you kind of played spoiler there lol, I was wondering what other responses would be)
Yes, that was the year he started with Burisma (as a high-level executive in an industry for which he had no experience, in a country for which he didn't speak the language... seems like a perfectly qualified candidate for the position, right??)
Honestly, I haven't seen anything that directly implicates Joe in all of those dealings. The emails and personal communications they recovered from the laptop seems to suggest a pattern of them trying to leverage Hunter to gain access to his dad's influence, and then not getting what they wanted (and it wasn't for lack of looking...Comer seemed to go down every rabbit hole possible)
My personal theory on this (and again, I have no hard evidence, this is just pure speculation)
Joe knows his son...knows his propensity for getting into shenanigans, etc...
Who among us knows a crack addict who gets 7-figure job offers in foreign lands? Oh wait...none of us??...yeah that's what I thought.
Joe's probably assuming that his son got into some "less than legal stuff" during his time with Burisma (even making promises to use his dad's leverage can be a chargeable crime for Hunter depending on what he was telling people over there, even if his dad had no insight or intention to participate)
"What?!?, they're paying my drug addicted son how much to sit on the board of a foreign energy company? There must have been some shady stuff going on"
...and set the immunity cutoff date accordingly based on his own suspicions.
I've also thought it's quite possible that Hunter, himself, told his dad (after his dad previously said he wouldn't give a pardon). "Ummm...hey pops, not sure if it matters, but when I was in Ukraine back in 2015, I did XYZ...just thought you should know"
Would anyone be terribly shocked if we found out that Hunter did something like sleep with an underage prostitute while he was over there (which would draw federal charges here)? (again, this is hypothetical folks, not saying there any evidence of this happening, just saying that Ukraine is a country that's known for that sort of thing, and he was over there as a well-connected person, rubbing shoulders with big-shots, and we know he had a propensity for soliciting certain "services" as the photos on his laptop would indicate)
Let's be honest here... "Hey dad, one of the hookers I had in my hotel room back in 2015 ended up being 15, I didn't know...I swear" isn't out of the realm of possibility here...just saying.
It's not any crazier than the "Trump Russian hooker pee tape" stuff that half of the population was willing to entertain being possible...