This meta question is not limited to this question but as example in this question the the answer from Jafari Fiqh is deleted by a moderator. this question can be the question of Muslims from different schools and having an answer from other schools can be useful for followers of other schools.
Also the question is not asking clearly for answer only from a specific school.
Even if question is asked for a specific school, the answers from other schools can be useful.
Also The Jafari Fiqh answer is valid for a Hanafi Muslim because:
there have been numerous fatwas regarding the acceptance of Jaʿfarī fiqh as an acceptable Muslim madhhab by Sunni religious bodies. These include the Amman Message and a fatwa by Al-Azhar
when Islamic scholars allow using Jafari Fiqh for Hanafi Muslims, Jafari Fiqh answer is on topic also. unless we want to disagree scholars.
Also this site is claimed to be a Multi view site. other Muslims maybe have similar question and while a question does not explicitly limit the answer to a specific school other answers can be useful for other users.
Also please note explicitly asking for answer from a specific school is different of preferred school. only if explicit should be deleted and not if preferred.