Suffusion is definitely one of the best or maybe even the best free theme around. Before i started my blogs at the end of 2011 i actually looked at almost the whole repository (i think there were some 600 themes back then), and i did trial installs of somewhere between 50-100. Suffusion came out clearly on TOP.
The developer unfortunately is currently thinking about stopping to work on it because of some decisions the WordPress theme review team has made that in his opinion are detrimental to developers and users.
That would be a shame.
I always admired how Sayaontan - besides having a high-workload full-time job and a family - worked on Suffusion, replied to forum questions etc, and all of us get that for free.
So what i see is an unusually dedicated person, and if WordPress manages to annoy such a person so much that he actually thinks about stopping to take care of his baby Suffusion, that has been - so to speak - "adopted" by millions of websites around the world, than WordPress is definitely doing something wrong.