Please, don't deprive us of possible ambiguities which can be quite funny! People who write without stops and commas are so sure that they'll always be understood correctly. Fortunately, they're wrong =) And it's more convenient to read text without capital letters at all than to read ALL IN CAPS, isn't it?
Anyway, everything will remain unchanged because it's unlikely those guys will read this.
As for me, i'd like to get a clear explanation of why i should write "I" instead of "i". Thanks.