It's marginally easier to read, and it costs me nothing. I've been typing this way for forty years, and it takes me longer to try to single space after periods. Why should I change? I'm not asking anyone else to do it, but I'm not going to unlearn something that doesn't affect anyone else.

So that's my thing. I'm the double space after periods guy. I'll also argue with you about State's Rights and the Civil War, the correct pronunciation of the word "gif," and why imperial units remain popular despite the "obvious" superiority of metric. I also have some inflammatory opinions about conservativism, but those aren't nearly as controversial as the other ones.

As they should!