for the same reason that there is so much bad writing online? you'd think that making it much easier to make large projects would mean a great many more people would make large projects - this will inevitably reduce quality.

The number of people with the time and dilligence, the people who previously would have been making them previously, is much fewer. They hide themselves away to find likeminded people anyway, but now its even harder to find them amongst all the deafening slop.