I come from a poker background so I might be more inclined not to give away free info to the opponent then most, and I won't argue anymore after this, but I'd like to post a story about how I learned to shut the fuck up and not teach the opponents how to play.
Years back I was a mid stakes pro, Sweden has tax laws that made Pokerstars less then viable for me before they moved to Malta for a EU-licence, but I still followed the monthly mid stakes low content topic just to keep up with what happened since a few regs on stars played the Eurosites too. Also I just read anything poker related really, a lot like a bunch of you guys probably fiend any MMA-reading you can find.
Anyway, one day some dude commented on how fucking awful some other reg was, I think he posted some suck out and proceeded to explain why this guy sucked and how awful it was to lose a hand to him. No harm, just blowing off steam. Then some other reg decided to give his two cents on the guy and after a while a handful of decent regs had listed a long ass list of stuff this crap reg did wrong. Nothing really happened except the occasional joke about how this guy fucked up and some laughs, it was actually something that people bonded over. "At least I'm not doing that shit, I'm not retarded" kind of deal.
However, those posts got less and less frequent until one day a little bit less then a year later as I remember it, although this was many years ago, "the retard" came into the thread and posted a couple of pictures of his graphs. Turns out that he had googled himself, found the thread and and after losing ~5-10k or so per month over half a year or whatever he just read up on what people thought he did wrong, fixed all those leaks and suddenly he was making a few k's each month. I think he was up about 100k or something like that since he started reading about himself. Sucks to be the assholes who couldn't shut up and therefor costed themselves and other regs maybe half a million or so of value over a year by turning a fish that apparently had a bunch of money to throw away into a winning poker player.
Obviously I decided to google myself, and obviously a bunch of asshats has written at length about how badly I sucked in some spots and suddenly I made tons and tons of money out of slowplaying the river since I, according to the internet, never in my life had check a bad hand out of position on the river. Probably the biggest single improvement to my poker winrate ever.
Since then I tend to shut up about bets I make until I've actually had a chance to make them, for the same reasons I don't discuss poker theory at a poker table.