I think that there are two separate readings of the tricornkings statement.

[..] you effectively illustrated (how Darwin’s Theory of Natural Selection became accepted by the wider public using a […] MEME), here is [..]

[..] you effectively illustrated (how Darwin’s Theory of Natural Selection became accepted by the wider public) using a […] MEME, here is [..]

I imagine that the second statement was the original intention of the author as I do not think Darwin had access to Internet memes as means of spreading his theory.

This might seem obvious to some but it would be appreciated if people kept in mind how the language they use could be misinterpreted, especially in text.