Let's make one thing clear:

I do not like it when people take stuff of ones Blog and post it on theirs without even having the courtesy to link to the Blog they got it from.I personally think that is rude,because it makes readers of that Blog think that person came up with the idea by himself.I guess worse things could happen but if you consider that you helped that person to get his Blog and then he won't even join the community or acknowledge other Bloggers,thats pretty rude.
I am too nice to point out who I am talking about.
(10 points for the person who is able to figure out who it is...LOL)