The u-tuber, Chris linked to, does have some interesting vids but I hate reviews of the freebies, which they are provided with, getting rave reviews for what is often a poor quality item from a supplier with no customer back-up.
There is (currently) one clear example of blatant advertising where a well known modeller has received a newly developed item (for review) long before one can even pre-order (for delivery in a couple of months time).
That item may well be good and may well even suit some model engineers, but it most certainly demonstrates the worth of advertising to that manufacturer/supplier.
I think the mods do a good job and am quite prepared to put up with links being deleted on a general basis – they don’t always have time to check, or knowledge of those youtubers.
Let’s face it – unless the review is complimentary, they won’t get more freebies! Nothing different than car review journalists, etc. (but not particularly welcome on a forum such as this – in the way it is supported).