I don't need to talk to you, I already know your a twat, talking to you won't change my opinion.
As you've pointed out earlier, times have changed & you need to be able to "defend your space & get the first strike in" , or some other bollocks.
As for threats, yep, hold my hands up, Internet or not, you insult me, repeatedly, then I will respond, as for hurting people, I used to do it for a living, & I did it in a professional sporting capacity, & occasionally for special cases I did it for fun, so your threats are like water off a ducks back to me (that's an old saying that us geriatrics use๐).
But fill yer boots, your overconfidence, along with your big mouth, will get you in all sorts of shit, which I'm sure you can deal with with your 25 years life experience ๐คฃ.