Maybe it's just the marijuana talking, or maybe, just maybe, would it be cool to have the option to talk using your mouth with the other team? I don't know, I keep thinking about soccer and how it would be if the players on the opposing teams only had the ability to write to one another. I think banter between athletes is really fun. I like the "pretend" feud. If you have brain, even a cooked one, you should realize that at the end of the day, it's just a fucking game and it doesn't matter.
In dota I always try to redirect my teammates hatred towards me to the other team. Like, those are the real villains, right? And of course, if you don't want to hear russian techno from a mic with sound-quality of a potato, then you can mute, right? We're all (almost all) adults here.
Sorry for the long post, I'm high and decided to share a thought with my favorite community.
Source: https://www.reddit.com/r/DotA2/comments/11rb4nw/petition_to_add_all_chat_voiceoption_between/
