Laxotrade is a website that spams everyone that has any recent bitcoin trades. They send a very small amount of coins to everyone to try to bring people to their website through advertising.
Since Laxo sent a very small amount to the hackers address it was probably just because they saw his address in a recent trade. It's not like the hacker sent bitcoins to laxo...
:)Thanks for your reply, but there is a question why they cannot tell us the user information of this suspicious address.