Quora

Quora is a popular Q&A website. It covers all topics and although every foreign language is its own instance, they are well integrated with each other.

My profiles on English and Japanese Quora:

• https://www.quora.com/profile/%E3%82%A8%E3%83%89%E3%83%9F%E3%83%84-%E3%83%8B%E3%83%83%E3%82%AF-Nik-Edmiidz
• https://jp.quora.com/profile/%E3%82%A8%E3%83%89%E3%83%9F%E3%83%84-%E3%83%8B%E3%83%83%E3%82%AF-Nik-Edmiidz