Posting an image gave an error (using their API). I forwarded that to tech support. Weeks later i even wrote to Marco. But no reply from anyone.
I have many, many fewer users than that and I'm still overwhelmed with tech support requests. Can't login, forgot my password, mistyped my email, feature X isn't working right, etc, etc, etc. Now mind you, most of these are flat-out user error, not actual bugs to fix. Still, I try to reply and help out with each one. Usually it involves some hand holding.
I don't know what I'm going to do if our userbase keeps growing.
However, surely when you've put up an API for others to use, you should have tested it out. It's not a large API. My email was quite clear too in its title, that its a bug.
I really know what you mean in that last line of yours!
There's no size limit. It takes photos, videos, text etc. The only thing is does easier is login (from your own client or command-line), since (IIRC) that's unencrypted (which is obviously not good, but acceptable if what you put up is just some junk notes).
Ah, how things change...