I removed the powered by text but in place put this
Would I still be eligible for support
What is Cluster? Cluster is not MyBB. I think you can use the image link instead of text (as long as the link is there) but that powered by Cluster line - I think not. Waiting for other team members to comment.
He's talking about using the two talking bubbles, as if that could be substituted for "MyBB". Of course the answer should be no.