I lost focus
I became less creative
I know a guy who does a crossword puzzle from the newspaper everyday and wont rest until he completes it. He says he does it to keep his mind working. I haven’t purchased a paper copy of a newspaper in 15 years. I had my own way of keeping my mind challenged.
Always trying to come up with good names everywhere I went kept me sharp. Think about it, it’s like constantly trying to solve a puzzle. You see something, think a little differently about it, and try to come up with one or two word dot coms that may not have yet been snapped up. Then you think of variations on that. Then that leads you to another related domain area to think about. Sure, the effort doesn’t typically result in a cash cow, but neither does a crossword puzzle.