Hey Nok,
Sorry you feel frustrated by the rate of change but I can assure you that I'm constantly working to improve the website and make it the best it can be. I don't have a team of coders, it's just me but I try to make the best use of the time I have available.
There are many things still to do but I'm hoping you'll have noticed some of the recent changes to the messaging system. Also a long standing bug fix to the pic uploads to prevent the width being cropped which was happening in some cases.
I'm currently still working on the messaging to give it more of an app type feel, with just one line per contact and plenty of AJAXing to speed things up.
Thanks for your offer of help but with 1000s of lines of code it's not really something that people can easily just dip into