I feel like I've recently posted here, but I'm not 100% sure, still an interesting update I think! Since Dec. 2 I've gotten over 1,500+ unique WL pets from trades, offsite trades (Flight Rising), gifts, and free adoption threads!
I recently came back to CS on the date above after leaving in October of 2017, before the Halloween event started. And before that I thought I was going to quit forever so I gave all pets away in a huge raffle in Nov. of 2014. I didn't come back to CS until May of 2017. With only about 5 months of active time in 2017 and less than a month this year, I've already made a HUGE dent in the monthly release pets of each year, especially for the years 2015-18! (My WL is still 112 pages long but pffffffffff, my 2018 pets only take up 7 pages woot!)
I thought my goal of collecting all pets wouldn't be achievable, especially with the lists growing (2011 store pets on the advent list? that's crazy!). But at this rate I can see it being very achievable! The biggest help has been the free adoption forums for the bulk of the UC and under monthly release pets. Off-site trades (gotten around 420+ pets through them so far) have been the best for older uncommon, rare, and list pets, since I don't have a lot of trade pets from events yet. I think part of the reason I left in 2017 is that I was going heavy into grinding treasure in FR to trade for pets on CS, but I'm going to try to not over due it this time around.
Sorry if this is long winded, I just wanted to share what's been on my mind recently! Now seems as good a time as any time to join CS and have a dream, I think it is still very viable for new and old users alike to be able to accomplish their collection and pet goals, that just seems really cool to me!