First: you can expect a lot of begging 
To be taken serious, he started with a signed message. That proves ownership of the funds. People make up all sorts of claims without being able to back them up.
I want to hear what causes are close to your heart. I already posted in some other places but want to hear your suggestions on how this wealth will be best used before my time is past.
Have you seen the Pineapple Fund? If not, it's a good start to see what someone who donated 5104 BTC did with his money.To be taken serious, he started with a signed message. That proves ownership of the funds. People make up all sorts of claims without being able to back them up.
since you love bitcoin and you claim to have amassed your wealth because of it maybe you could start donating to different bitcoin-related projects
I like this suggestion. Coindesk has a recent article on Bitcoin Core funding, which has always been a bit of a problem. Miners take the money, not developers.you might consider donating some of your wealth to the development of the forum used the donate menu
As far as I know, the forum doesn't need money.