Quoted from DCFAN:
Next up for DCMA wil be podcasts for using music and movie sound clips.
Next? Its been a problem all along .
Its mainly about visibility and ease to police. This is why what platform you are on plays such a huge piece in how readily enforced or aggressive the takedown requests are. Some are very highly automated, while others are not. Youtube has been fighting this for years... twitch finally caved and hence why its been in the news this past year.
The fight of late has been over what should be allowed under fair use. There is almost no willingness in providers to stand up to takedown requests for content that would be legal under fair use. Content creators have very limited recourse to challenge this because the system struggles with the scale of all the activity..so people get almost no meaningful interpretation.
If you are a popular show, or on highly visible and automated platforms such as youtube... you will get noticed and recieve takedowns. It also is highly dependent on licenser... some are VERY aggressive while others are more lax. Some will not pursue stuff under reasonable limits... others are draconian.
This was a common problem when acdc was new.