Why #nostr ?
If you compare nostr with X or Instagram , the anology that comes to mind is a eating at a restaurant vs cooking your own food ..
At Insta , you give your groceries - they store your stuff with billions other in a cold store - cook something they find good for you - and serve you the way they think is best for you .. you eat it - mostly feeling bloated and dissatisfied.. and you can't even complaint :-)
At nostr - you decide how you store your data - beers in garage refrigerator ( your long posts) - wine in the basement ( reactions to your notes) .. may be leave some fruits on the kitchen shelf ( caching services)
You can choose the size and shape of your store - relays - to match the decor or your home - you can have them customized for you - even make your own ..
Then you decide the pans n pots that you want to cook in - #Amethyst for short notes - #Yakihonne for longer ones - #Damus if you are locked in the walled garden ( a ticket to your freedom :-) .. and #gossip if you are taking food to work ..
Finally - you present your culinary skills - the guests that come to weekend party - npub.pro
You own your data - you own your creative instincts and you own your presentation ..
And it is just getting started ..