In practice it's difficult if not impossible to do anything about it, between providers being unwilling/unable to identify the claimants and the costs involved in taking them to court.
Especially hard to get the courts involved if the claimants are in other countries.
About the best you could hope for is if a person can be shown to be acting in bad faith they could have all of their takedowns reversed and the material in question flagged so that further takedown notices trigger an audit. In practice this might just mean making a new account for each takedown notice, but it does raise the bar a bit on bad behavior.
I'd also assume big media cartels would be exempt because operating in bad faith is their entire business plan and they're willing to sue to maintain the status quo.
A lot of automated copyright claims are made by reasonably sized organisations. Should require a deposit for making automated claims.
Do not have to take them to court, the burden of proof lies with the copyright holder. And sufficient mechanism for counter claims and forfeiting the deposit.
Also can take collective action against all falsely claimed copyright.
The real trouble is something flagged as offensive, once a comment of mine on Quora was taken down. I was given a warning of that being offensive and me being potentially banned. I have no idea to this day what was taken down and why people found it offensive.
The right to contest sadly does not exist, this makes it so easy political or religious groups to silence individuals.
About the best you could hope for is if a person can be shown to be acting in bad faith they could have all of their takedowns reversed and the material in question flagged so that further takedown notices trigger an audit. In practice this might just mean making a new account for each takedown notice, but it does raise the bar a bit on bad behavior.
I'd also assume big media cartels would be exempt because operating in bad faith is their entire business plan and they're willing to sue to maintain the status quo.