Just reported to Steam with conversations side by side. Hopefully it gets resolved quick. RoadRunner does not deserve this from these rotten people. Don't click on any links that is being given by his account at this time.

Can confirm. If anyone else is getting this message, please check this post and don't click. https://steamcommunity.com/app/730/discussions/0/5168416410406470159/

Yes I can confirm, his account have been hacked and there is another guy using his account sending everyone private messages with links. RoadRunner was such a nice guy, he never deserved this lol. I hope he gets his account back

This account has been compromised by a Steam scam site.

Merry Christmas to you and yours :-) And a happy New Year !