Even the litecoin dev Charlie Lee dumped his litecoin. I wouldn't invest in a coin that had the creator dump his own coins, it shows he doesn't care about the future of this coin.
Don't be so quick to start judging just because the creator dumped his own coin and he gave enough reasons why he decided to do that.
Although, it is understandable that sent a lot of wrong signals into the market, but we also need to understand that the development of litecoin does not lie on the owner abandoning his own ship by offloading his coins, but simply by how development comes up for this market in the long run in terms of use as payment which is what I feel we should be more concerned about.