score:4
Unfortunately (or not), moose near Moscow are not as ubiquitous as kangaroos in Australia. While the park aptly called "Лосиный Остров" ("Moose Island") does contain a small population of moose, the park is huge and mostly wild, and meeting them is more like winning the lottery. Sokolniki park, mentioned in the Livejournal post you've linked, is only rarely visited by moose, you can't rely on the encounter.
Finally, if you do manage to meet a moose, you'd really prefer to be at a safe distance, much further than would be practical for a selfie. So better leave the selfie stick at home and take a camera with a powerful zoom, go for a walk in Sokolniki and Losiny Ostrov: no guarantee, but you just might get lucky.
Upvote:1
I think it would work with the Moose Island National Park in Moscow. You can see its location via this link:
https://yandex.ru/maps/-/CCQtfJRUHC .
You can see there that the park extends beyond Moscow; the boundary is approximately the MKAD ring motorway. One way to get there is to take a local train from Yaroslavsky Vokzal and go to the stop Лось, the name of which means moose or elk.
Upvote:8
Not the answer you're looking for, but trying to get a selfie with a wild moose (elk) is a really bad idea. Moose are very large animals with fearsome antlers, and they will charge if you get too close and they feel threatened, particularly if they have calves to defend. And unfortunately, moose that have ended up in urban areas tend to be distressed and hence dangerous. Here's what happened a few years ago when one got lost in central Helsinki: https://finlandtoday.fi/moose-breaks-into-a-bank-in-helsinkis-toolo-district/
Moose don't do well in zoos, because they need room to roam and have a complex diet that most feeds can't match. If you're up for an excursion, the Kostroma Moose Farm https://www.moose-farm.ru/e000.htm about 300km northeast of Moscow is a good (if somewhat controversial) place to see comparatively tame moose, and their website has some other suggestions as well.