I don't personally buy into the "being a single founder is harder" thing. True, if you don't know how to program (or design, or sell, etc) then yeah, it's gonna

I don't personally buy into the "being a single founder is harder" thing. True, if you don't know how to program (or design, or sell, etc) then yeah, it's gonna be easier if you have a co-founder who does. But if you're able to get it done yourself, having other founders around seems like a burden. That said, I've had success and enjoyed working with co-founders on bigger projects. But TinyLetter is simple enough that I didn't need anyone else.