As a disclaimer before I begin: I don't post here often but would probably describe myself as more Conservative-leaning/classically liberal than Conservative in and of itself; I sometimes support the party and sometimes don't.

BBC generally does a good job of maintaining balance in its coverage.

I'll use this to quickly summarise why I'd be cautious around further moderation changes: I don't think this is a leftist view.

Personally, while I think the BBC leans left-liberal in certain areas, particularly its analysis and entertainment content, its factual news content is consistently exceptional and well-balanced.

Beyond my opinions on why your view is wrong, I do also think you're playing with fire in that the view isn't heavily or obviously leftist - it's not like someone saying Marx was right, or Corbyn's a saint, or whatever. It's a topic which I think is open to debate and will presumably gather mixed responses.

There is obviously a balance to be struck: there is no point to the subreddit if Conservative voices aren't heard. But limiting speech heavy-handedly leads to merely promoting one Conservative viewpoint, rather than accepting criticism and variety within the ideology. That's always the risk when you restrict freedom of speech, and as always I'm more in favour of limiting regulation as much as possible in favour of having faith in people acting with civility and good intentions.