As a matter of price:
250k uniques. How is this measured? How many are from other instances? How many from mobile apps? How many on desktop? How many are actually unique? How are you counting users?
$0.005 ARPU is quite dependant on how users are actually measured. How long do they stay? What % drops off after how many navigations? What does your engagement look like?
Is this assuming 250k unique hits is 250k revenue generating users? What is the time frame for you ARPU?
There's a lot to know if this is being used like a product and you are trying to sell it as such.
As a matter of taste:
This sounds like the objective of starting the community was money 🤔
Having limited time & resources makes sense, life just be that way, but essentially saying "donations aren't enough to purchase my time" indicates a whole other motivation that's inherently counter productive to the platform IMHO.
I'm sure you have your reasons, but the post is kinda snobby about it.
This needs more details!