Well, I think different people have different issues with PvP, et al. Here are some of them:
- They're stealing, or buying stolen goods.
- They're not admitting to this.
- They've alluded to, stated that, or implied that they're "legitimate" YouTubers and/or they're officially supported by Hasbro, Takara or other related parties.
- They're getting ad revenue and other related perks/money before/at the expense of other reviewers who wait to purchase TFs legitimately.
- (Related to above) Regular fans in, say China, Japan, special events, who might want to enjoy being amongst the first to share pictures of new TFs are "beaten to the finish line" by PvP, who didn't go to the event or who doesn't live in those countries. This could lead to alienating such fans into interacting less with the fandom (
Why bother posting any pics when PvP has already done it?)
- They're breaking YouTube's rules regarding sponsored content (or receiving sponsored goods) and not disclosing it in their videos (if they are actually legitimately linked to Hasbro, etc).
- The toys they review might not accurately represent the final retail versions, as the ones in the videos might be test samples, factory rejects, etc (which aren't disclosed as such in the reviews), leading to inaccurate expectations of quality, features or potential problems (which might lead to less people buying them, as they expect them to be faulty, for example).
- They could create
FOMO amongst other YouTubers/reviews, which could lead to an increase in buying such stolen toys (by both reviewers and some collectors) which could further eat into Hastak's profits.
- Hasbro has less control over when to inform fans of new toys and thus it lessens the hype for said figures.
I'm sure there are more and some of them are similar to other points. However, it's a bit like the 3P/KO TF scene, but the reviewers and companies behind said products don't usually pose themselves as "legit" TF product reviewers. They '
call a spade a spade'. Also, when 3P or official TF reviewers get test samples, they also usually state this too, which helps us to understand about any possible issues (which the reviewers usually pass back to the companies supplying them).