GrabCAD Community User Group

I checked my profile in the night and a moment ago.

First there was a suspicious message from someone on my Xgentec Rover Explorer model trying to get me to email them on there personal google mail saying they really like my profile contact me. At first I put this down to my jean claude van damme impersonation profile pic but then this message was deleted without me even reporting it. ???

Then I check my group the Electrical Engineering and Electronics Design and I apparently posted a message 8 hours ago without even knowing it, promoting one of my 3D printer designs.???

Was it a bug ???? I have just changed my password little confused at this point.