Generally speaking - No I don’t. Mainly because I am not an apologist and also a bit too thin skinned for the atmosphere in such places.
That said, there is one protestant board that I look in on from time to time and try to share as needed either to correct misunderstandings or to answer questions.
The nice thing there is that, with only a few exceptions, no one is really “Anti-Catholic” and everyone is pretty charitable in their discussions.
That said…I think that, while it is certainly a noble venture…trying to get people to stop spreading misinformation about Catholic teaching is like draining a lake with a teacup.
Such misinformation is going to continue to be out there and spread around by those who (mostly) just don’t know any better - but who have been “trained”, either consciously or unconsciously, to reject anything “Catholic”.
Peace
James