If you're seeing all these #BandcampFriday posts and thinking, "Eh, why bother?" let me point out that the $15 you spend on Spotify this month goes almost entirely to guys with "executive" in their job title/description, with the remainder going almost entirely to already hugely successful artists who, frankly, do not need more money. No one cares you spent the money.
That same $15 on Bandcamp today, if spent on an indie artist? About $14.50 goes to the artist, and you might make their week.