If I was on trial for murder, or something equally as serious, I'd want my attorney to look like an attorney.
I don't care how good of an attorney they are, if they don't look like one, I don't think I'd hire them because it's not what I think that matters, it's what the jury or the judge thinks.
It's the same for a pledge online. If you have little hearts flowing over your text and shitty design, it doesn't matter what I think. It's what everyone else thinks.