[Avodah] kreplach on Purim

[Eli Turkel]

1278. "The mitzvah of drinking more wine than usual on Purim is one of
the specific mitzvos of Purim day in accordance
 with the Rimazim and Sodos (secrets) included in the mitzvah; and one
who withholds from fulfilling the mitzvah because
 he doesn't understand the mitzvah has no part in [Klal] Yisroel, and
in the acceptance of the yoke of the words of our holy Rabbis".

Bina L'ittim Drush 21, Nitay Gavriel 73:1 fn1



1279. There are three days during the year when we have a minhag to
eat "Kreplach", a triangle shaped dough with
meat inside. These days are Purim, Ho'shana Rabbah, and Erev Yom
Kippur. The significance of these three days is
that they are all Yomim Tovim on which, although it is a mitzvah to
have a Seudah as on a Yom Tov, it is nevertheless
 permitted to work and conduct business, thereby making the Yom Tov
hidden. Therefore the simcha of eating on Yom Tov
which is fulfilled by eating meat, is done by eating a hidden meat.
Geulas Yisroel cited by Ta'amai Haminhagim


1. Never had kreplach on Purim or Erev Yom Kippur or Hoshana Raba.
Haven't even seen them being
advertised by the stores here. How common is this minhag?

2. Not drinking more than usual  means he has no part on Klal Yisroel
seems quite harsh to me.
In general I have a problem with these halachot that many relatively
minor halachot are claimed to have
major punishments eg not doing someone right in tefilla has terrible
consequences  including galut

-- 
Eli Turkel