Forum arguments can be very frustrating and a build up of frustration can cause a meltdown, although generally, I tend to get very calm and logical in forum arguments rather than angry. On a forum, I have time to think, word my reply exactly how I want and delete it if it doesn't add to the conversation, whereas in real life, I'd have a meltdown as I can't do any of that 
Regarding the cause of this particular spat, I'm on your side, I hate autoplay videos and music as well. Multiple auto-play videos on a single page could very well cause me to explode as well. On this site, I've had to use a gif blocker to stop member's animated avatars as they were doing my head in!
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Diagnosed: Asperger's Syndrome (ICD-10)
Self-Diagnosed: Aphantasia
Your neurodiverse (Aspie) score: 152 of 200
Your neurotypical (non-autistic) score: 46 of 200
Listener of all things noisy, viewer of all things bloody, writer of all things sh*t.