why do they alway take good vedio,s of ইউটিউব

Maybe they considered it copyright infringement
If the video is under fair use
(Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted দ্বারা copyright statute that might otherwise be infringing. Non-profit, educational অথবা personal use tips the balance in favor of fair use.)
Then try talking to the people who run YT about it

It's because of stupid copyright. The copyright law is well out of hand these days and it's so unfair!! >:(

Copyright issues, mostly.

Because Of Copyright :(