I don’t see the need to post negative comments where they can’t see or respond to them. It’s not really fair.
It's a publicly accessible thread, on a well established theme park enthusiast forum. The thread has the title "Theme Park Worldwide".
You do not need an account to view this thread. You do need an account to reply. As far as I'm aware, neither are banned or prevented from making an account to respond to comments on this thread if they wished.
I'm more than certain that one, or both, of them will have Google Alerts set up for the phrase "Theme Park Worldwide", at the very least. They will get an email the moment the Google spider bot notices a change to this page.
Your logic would dictate that any critique toward John Burton, for his "artist" comments earlier this year, on the Nemesis thread shouldn't have happened.
Your logic would dictate that discussion around Glastonbury, on the newly established Glastonbury thread, shouldn't happen because Emily Eavis isn't an active member.
Your logic would dictate that the Doctor Who thread couldn't feature honest reviews about episodes, or the direction of the show, because Russell The Davis isn't part of this community.
Let's not forget that the content of the Theme Park Worldwide channel is literally walking around themed attractions and reviewing and discussing them on YouTube. Arguably a place where the attractions themselves cannot see the content, or have the right to reply, by your own definition. If this is fair, why isn't a discussion here?
They have decided to make themselves public figures. They have decided to publish content online. Content which is targeted toward this community and this forum. As long as the discussion is about their content, or professional conduct whilst making that content, I cannot see the problem with discussing it in a public forum.
I would be inclined to agree if
@Themeparksandy1981 had said something defamatory, mean spirited, or nasty, but they didn't. They posted that Theme Park Worldwide's content appeared tired, that the format needed tweaking. Simply that the "show" isn't up to standard, or good, anymore in his opinion. This is exactly the type of discussion we have about all other sorts of content all over the forum.
As long as members stick to the rules, and don't make things personal, we're all groovy.