My feeling is that you should produce a lot, but that doesn't mean you need to publish everything you produce. Writing every day is a good way to keep thoughts flowing (most writing self-improvement books recommend doing so). Publishing every day can be a good way to oversaturate your audience with drivel.
Yeah that's the thing really, writing every day helps your writing, publishing every day doesn't necessarily get you a better or more engaged readership. Most of us follow many peoples writing online, if everyone is writing everyday lots of it is going to be missed.
