Algae gets a bad wrap for the most part (excepting coraline, of course). There are lots of us who like and encourage macros. I think my display is very dynamic. I have some really beautiful macros: sargassum spp., ochtodes, a few as yet unidentified rhodophyta that are superb. Halimeda is a calcium using macro that is quite unique. It's true, I have some valonia sp. as well, but it is not difficult for me to control with all the other species. Anyway, to each his own.
Cheers,
Ben