I know this is the official Black Mesa forums, however the dev team usually hangs out over at the Steam forums as well as Discord.
If you are looking to report issues with the game, you are best to report them at either of those locations.
Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.