My friend thanks for this honest question.
I am giving my best to answer this questions.
Those youtubers who says that commenting, in the beginning, is more important are not wrong. Indeed when you comment a lot(valuable comments) you get also exposure and followers. Maybe even some good rewards.
The best case is of course, if you are doing both equally. There is nothing more powerful than that. But it takes a lot of effort to do.
By posting you will get followers who are interested in the topic you write about.
I was already familiar with blogging that's why I was posting more contributions than commenting.
You know what. I think I will make a Post about that question. :)
Wauhhh....thank you again and will appreciate it