Two links from 2013 examining funding links of the nostr:npub17xvf49kht23cddxgw92rvfktkd3vqvjgkgsdexh9847wl0927tqsrhc9as and the associated OFF :

https://truthout.org/articles/using-human-rights-for-right-wing-politics/

> The story of the Oslo Freedom Forum is also a story of US right-wing sponsorship, lack of transparency and “heroes of human rights” involved in supporting serious human rights violations.

The truthout article references this earlier 2013 piece by Max Blumenthal :

https://electronicintifada.net/content/oslo-freedom-forum-founders-ties-islamophobes-who-inspired-mass-killer-anders-breivik/12451

As for amount of funding provided by Thiel, a BuzzFeed article states it as at least $900,000 to the HRF, but it is BuzzFeed so not sure about the accuracy. Thiel is also acknowledged on the OFF website as a founding funder (separate to his funding of the HRF) and organiser of the initial conference.

https://www.buzzfeednews.com/article/matthewzeitlin/oslo-freedom-forum-founder-says-thiel-has-every-right

Not enough scrutiny of the HRF/OFf, its backers and its funding sources has been done since those early 2013 articles I linked above.