As Stripe, PayPal, Visa, Gofundme, Patreon, et. al. shut down avenues of payments for legal, but unpopular purchases, BTC is the obvious workaround.
Vendors of firearms, pornography, legal funds for unpopular causes, dissident content creators, etc have become increasingly estranged from the "normal" payments market in the last few years. BTC is the killer app for this.