ColbzVlogz
YouTube sensation
I disagree. The only channel name a creator should be tagging is his/her own (regardless of niche).
In the above example, those big channels have grounds to flag the video in question as per the TOS that I quoted above. Channels get terminated for this all the time. Let's not give out bad advice to YTtalkers.
Thanks Crown for mentioning that! I had been doing that on my last 3-4 vlogs and had no clue you can get terminated for tagging other big YouTubers channels.