Great last Update with sharing function. Thanks for that

Well my request:
When you share right now you have your IP in your URL - especially kinda uncool when you share on Facebook.
Solution:
Many of us have a (free) DynDns etc. Account which points to the IP.
Make in the admin control panel a field like:
"Your own Hostname"
where you can enter ANY hosstname: example.dyndns.org, blabla.ath.cx, example.com and so on.
Then when you build the links you just take this hostname instead of the IP Adress for the URL.
You could even validiate if the correct hostname was entered, by just pinging (or something like that) the IP -> but for me this wouldn't even be necessary.
So what you say? (And also you other guys
