Deleting Facebook
feld.com
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Wait, you don't have their email? You've not sent them an email in 1/5/10 years? Why would you need to connect in the next 1/5/10 years?
Seriously though, if you really need to connect with someone and they are on the internet, google can help you find them.
You will miss out on serendipitous interaction with loose connections, and that is a real concern. However, the signal to noise ratio of my feeds was so low that such interaction rarely happened anyway.
It's the "acquaintances" who used to wish me "HBD <inset smiley>" once a year on social media (on Fb usually; almost all of them used to wish - just those 2-3 words) and when I made my birthday private that too stopped. Later I deleted my Fb account altogether. And I don't miss any of that really.
I still get many birthday wishes. Those are from the people who have been wishing me since I was in school, college, and a couple from work. They are the ones who remember that date (maybe have added in their contacts). But they wish and they want to celebrate that day by meeting and hanging out somewhere and we do that. PS: Well, how I myself feel about birthdays is another matter altogether.
Point is, there's no merit in this kind of FOMO.
Had a long "deactivated" period to figure out which services I had accidentally used facebook for authenticating with.
Now I go through my phone book and text/call someone if I want to see them and email pictures to my mom and extended family.
(Of course you can do things like trash all your gear, then delete all your characters, but unless you do that the temptation will always be there...)
So yes, they can keep your character, but they have to delete anything that can link that character to you.
In which case...what is deletion?
So what's the big deal? Is it some kind of accomplishment and people expect praise?
UPD: I mean, if you are not using FB anymore (like me), then does it really matter if you delete it or not? If you actually do use it, then why delete it?
If it wasn't for that, I would delete my account.