I've made male friends from Facebook photography groups, political groups, war history groups etc.
Some have said they like me as more than just a Facebook friend but most aren't local so we just chat & flirt on messenger & it's all quite pleasant.
I basically practice my online chatting & flirting on these men in preparation for real life online dating as I need some practice lol.
Seriously I'm crap at messaging men who I'm actually dating in RL. Maybe because it's closer to home.
Ive had a man who became friends on Facebook through a dr I know offering to pay for a very expensive holiday with him in a country he enjoys visiting, all I have to do is get the flight.. he says he loves my pics & thinks I'm beautiful... But I don't think I'd live up to his expectations & there's so much that could go horribly wrong I'm definitely not going!
Yet... My cousin met a Nigerian 10 years ago through a Facebook group.. she ran off & met & married him in Cyprus!!
Well, 2 children, 10 years & one British passport later they are still married.
I also 3 women who met old schoolmates through Facebook & married them!
But watch out for the 'American widower oil worker / ex marines' who just happen to work in Asia or Africa. They're scammers.
Also there are many men who live in the third world who will have no shame in asking for money it's happened to friends of mine, even those friends in low paid jobs. So just be careful online OP.
As well as that bear in mind the men you think you know in your FB groups in the uk could have an unsuspecting wife or girlfriend at home.
Start from the premise that most men lie to suit themselves & you won't be disappointed.