There was nothing to warrant muting people for saying bacta at the end of a sentence. It wasn't spam. It was a meme. OOC is literally a big meme so the people who take it seriously need to chill out. You had no reason to mute them in the end, no matter if two people said to stop.
About the physgun. Why did you open up with it? Use your voice, talk like an actual human being. Say "hey Smalljeff can you please leave DB so that we can do tryouts?" Instead you grabbed him and from smalljeff's POV held him in front of a sign like he is a reject who cannot read?
Overall these were just really bad ways to approach these situations.