Hope it's alright to chime in even though I've only been through like two events
QUESTIONS1. what is each pet at unknown worth?
Other similar unknown.
Token for token, etc.
2. what is each token worth?
I don't sell the tokens.
3. does the amount of tokens change the demand of the pet?
Yes. For me, a lot. One token can make the difference between the pet becoming rare because less people get them, regardless of demand at the time.
4. what pet is most likely to be hoarded?
The cute ones of course! And the niche ones like the hw spider dogs?
5. for events without tokens are the pets treated as normal or event?
For me I treat them same as event but I keep mental note.
6. how much time to you spend hunting?
A couple of hours each day? Depends on real life.
But I will set an alarm for ten minutes because otherwise my adhd would never remember the banners.
7. how many trades do you make?
Often only trading for missing outcomes so maybe one or two a day.
8. what do you mainly look for?
Not sure what this means.
I collect one of each, I don't hoard.
9 do you go after items as much?
YESSS. I want all of the items. More than one of the ones I like.
10. most important do you trade you new event pets for older ones?
If extra, yes. Especially wanted outcomes, people have generously offered older event pets.
Most of the other people I have talked with, they trade their tokens for C$ a lot. Which I also want to do someday because store pets and people have trading groups where they prefer C$

Also, edit: Many people I've traded with prefer the outcomes to have the original day they were released?
I sort by lineart though, so it's less of an issue for me.