Easyvto get an English passport. All is done at Trendy building on soi 13 sukhumvit. Just need all the relevant docs and an appointment. There's agents who will do it all for you but it's simple enough.
Get a Thai passport as well and then its visa free travel pretty much anywhere in the world but definitely between Thailand and England.
you are selling adnin rights to a group as you rightly state that Zuckerberg owns everything. There's big business selling these admin rights as you are effectively selling a database of people with common interests
I'd say the contrary. I know it's been owned by an agent for a while but in the early days they had some clumsy interactions with poor feedback so have thankfully mostly withdrawn.
In the meantime the mods here offer brilliant help, personally I use it as an education resource as you know what gets proffered by them is objective factual help.
100% sell it. You'll get more for it in Thailand than the cost of the equivalent in UK. Import duties will be huge and it won't meet UK safety standards.