Modern SR shaving can be described as unnecessary. That being said, so can shaving full-stop. More and more people are growing beards and it is becoming far more acceptable. Using a single-bladed razor can be as well, as can lathering with a brush, buying multitudes of soaps and pre-shaves etc. In fact, when I first started shaving (back when I was only aware of carts, prior to growing a beard and using a trimmer) I used to shave in the shower before uni. Took no extra time out of my day and was a chore - yet it did the job required.
I use an SR from time to time because I enjoy the experience of using one. It isn't necessary for me and if anything I tend towards the lower maintenance razors with disposable blades for swiftness and ease. I wouldn't say I'm bragging by using one, but I can see why people may, especially with comments along the lines of 'you're so brave/foolish to use an unguarded, surgically-sharp razor'. Doesn't work for me though, I shave for me ultimately.