Part of the reason this was all acceptable in the LAN party era was that you were having fun together with friends while dealing with the annoyances. You could curse, you could laugh, and you could eat pizza together while you were wrestling with the faulty ethernet hub (remember those?) or whatnot. I remember I once accidentally blew a transformer at my friend's home while getting set up, and we all had a good laugh.

Nowadays, you play a game over the internet and you would be lucky to have even a friend next to you watching enthusiastically and intently.