well, OP is anon so he/she could have many reasons to share it here
from building reputation to making connections... maybe?
here is a good place to find like-minded people in terms of gambling.
I wonder if you are able to win hundreds of thousands of dollars, then why do you need a reputation anywhere and any connections? Why do you even need publicity? If I was capable of making that kind of money betting I wouldn't brag about it either in real life or on the forum, I can't think of any reason why I would want to do it.
I would not do this if I won in a lottery because many people will know that I am now rich and that will put me at risk, but it's different when we are playing online only a few or no one knows that we are playing or won that huge amount so he is safe even if he brags, he just want people to know that it's possible to win that amount and maybe motivate them, if you're positive in gambling you'll take it positively.