On my Twitter account, I had a banner with my company's logo on it. So when I created my Mastodon account, I used the same banner. The weird thing is that on Twitter, it felt completely natural to be in some ways defined by my employer. But here, for some reasons I can't explain, it felt a bit out of place. So I've now updated my banner in both places to be way less "corporate", and it feels good. Already after a day of use, I feel how this place is less polluted by commercial interests.
