Since when was social media THAT serious

It never really occurred to me that people take social media seriously especially teens like me i understand maybe social/public figures. Like yeah i post stuff but it not like i really care. 

The other day as a joke i took my sisters phone and posted this meme of a vicodin commercial by house to her story and she kinda got genuinely mad because people saw it and i didnt expect that reaction so i asked her why does it matter, she said "theres more than a hundred people viewing my story" maybe i crossed the line but i told her she could just post and tag me and say it was me who did that right? i mean do people really take that seriously? Genuinely i dont get it. 

A day after that my friends and i were in a call, they were telling me to install Instagram again since i deleted it to clear storage its not like i needed it. I mean i didnt care really so i reinstalled it. Ive been obsessed with house md recently so i changed my nickname to "i too am in this episode" then i checked what they both had as their nicknames cuz i was curious. They had a single symbol as their nickname, so pointed it out randomly saying as a joke "you both have symbols as your name so aesthetic"  they both said "sorry we both take these things seriously" then they saw mine and said "did you really just make your nickname that" i mean yeah? I never thought it was a serious thing? I also didnt have a profile picture yet and when they saw they said "youre so nonchalant" That wasnt even my intention but i was eventually gonna add one later so why does it matter? 

Then after that it was my friends birthday. I made this video of that birthday clip of Tyler the Creator but with a picture of me and my friends face pasted on it. I was proud of it thinking its funny and posted it and tagged them both. I mean its just me being me they both didnt mind it and reposted it to their stories. But later when my friend who was the celebrating his birthday reposted all the other greetings to him i realized how serious everyone elses was every single one of them were all so well layouted and aestheticlly pleasing (then i proceeded to feel insanely embarrassed of mine...sigh). Then later i kinda stalked others my age that i followed and wow it really is serious.

Its not like i cant take things seriously i can be serious at times i do post those kind of things too except i have seriously have no creative mind when posting pictures also im the laziest person i know but usually i dont really care most of the time but it just amazes me how insanely serious these things can be for others. I just dont get it