[Pandatae]

I'm just a beginner so I wonder something. This morning I got a game with a terran player who is in higher level than me ( I looked at his avatar). I thought it's hard to beat him so I use banshee to harass him very early. I supprised that he has no way to stop my banshee and I killed almost of his SCVs. And he began to talk some bad thing with me during the game. When I finish his base, he said that just a noob like me try to use such a dirty move to defeat him and I was lucky because he didn't even finish building his army. So is it a good strategy or a dirty move and should I use that strategy in my game. I really don't want to make anyone upset when they play with me