I might be willing to dedicate some forum funds to this.
Yes it should be but when the channel reaches 1000 subscribers with 4000 watch hours it will help the forum when it comes to funds. YouTube will pay if the channel get monetised and it is very possible because the channel is about the biggest bitcoin forum existing. Only few forum funds will be spend I guess. When the Bitcointalk.or YouTube Channel monetised it help the forum or the forum will get funds from YouTube.
I don't think our forum needs those few bucks from the Youtube which is annoying thing for many users to see the ads in between and at the beginning of video,the youtube channel should not be monetized this will distract the users from the content of the video.
If theymos already planned to create channel for bitcointalk then the content creator must be highly skilled with much experience in the Youtube channel and also need to have good camera,editing and speaking skills.