Ask HN : Why every little startup seem to have a designer on their team?

Every startup these days seem to have a designer on their team (I'm thinking of http://mite.yo.lk/en/ but it could be anyone). How can you afford that?

I mean, I can pay for a web designer but it costs me too much and the design does not evolve with the product so we go on and make our own shitty design.

What do you do to have at least an OK design?