I knew one colleague used to be very proficient at blogs but the trouble was after a while he would loose interest and start a new one on the new subject, new d

I knew one colleague used to be very proficient at blogs but the trouble was after a while he would loose interest and start a new one on the new subject, new domain and everything. With time he had several blogs on subjects unrelated but mostly all abandoned. I don't even know what could have been done about this kind of trap, but one thing I learned that starting a blog on a new hobby that you might not enjoy after couple of years is not the way to go.