Add the date of the first ever DDD event.
Reduce the usage of the semicolon.

I've left them in the final paragraph, because it seems the most correct
punctuation here. That is, there's a list of things, and one or more
items in that list are themselves lists. As such, the comma can't be
used throughout.
Put the word "softer" in quotation marks.
Remove commas after i.e.

Apparently this is the British English standard.
http://english.stackexchange.com/questions/6894/should-there-be-a-comma-after-i-e