I would move subscript to the core standard, especially since there's already an XHTML tag for this. Quite handy for formulas if you don't want to (or can't) use something else like embedding MathML or similar. -- MarioLenz
I don't care how it is done, but I just want to be able to write CO2 properly without having to read tonnes and tonnes of markup instructions trying to find out "how", and often "if" that particularly wiki does subscript. And of course, I can't demonstrate the typical problems, because this wiki doesn't have subscript. As for how it is done, I don't like ,,subscript,, but beggars can't be choosers.
<<How does this wiki add a signature - oh I forgot, there's no standard!>>
The standard way of signing your comments throughout the more civilized parts of the Internet is usually with your name. I don't think this is specific to wikis and should be included in WikiCreole specificially. I also think that the most straightforward way is to just type CO₂ -- note how it also requires practically no markup whatsoever! -- Radomir Dopieralski