Not only is this mean spirited, I think it's fairly short-sighted. I've tried several to-do list apps and none of them have quite worked for me. I end up going back to scrap pieces of paper laying on my desk or stickies, both of which are sub-optimal. In fact I've never met anyone who fully recommends their to-do list software, their recommendation is always filled with caveats and things they still do "the old way."

Yes the market is saturated but that doesn't mean there is nothing innovative to be done here. I say more power to this person for building something for himself and putting himself out there to see what others think.