Yeah but can't you just post an announce "i'll be in X for Y days" on SNS like the old way ? It's way nicer and a much more explicit invitation for hangout than an icon on on map ;)
It's worse than anki because there is no SSR built in ( at least when i was doing it ).
>But there are many situations where memorizing 400 distinct things is pretty useful: countries, capitals, recipes, history etc.
Just memorizing 400 vocabs alone is actually pretty good early on because then you aren't tied to practicing grammar with childish content like " I went to school by bus yesterday" because of limited vocabulary.
I spent the first year alone learning about 2000 vocab without any grammar. And when I go on and do grammar I can actually practice with interesting content that related to my daily life. I now recommend new learner to learn their vocab by N + 1 level relative to their grammar.