His would be gender specific, which is not indicative of this thread or forum. One could instead change the noun to match the plural possessive adjective with "To all their own". That sounds dumb. I'm sure if a better singular adjective existed, it would be great. But there is not. Actually, that's debatable because The Chicago Manual of Style does not acknowledge their, but The Merriam-Webster’s Collegiate Dictionary does. I suppose it then becomes a matter of choosing your definitive guide.
Ragardless,Reboot expressed his views with language. I understood his views. So language was served. I apologize that his choice drives you bonkers, but I believe we must dedicate our time to arguing important issues such as whether Vikor was present at The First Ultimate Battleground. I implore us all to find peace where we can find it. There are probably grammatical errors in my post. I hope my thoughts have been conveyed to you.
To all their own.