Class actions allow many consumers to band together against a company; waiving this right means each person must fight eBay alone, which is often impractical for small-value claims.
eBay's User Agreement significantly limits consumers' legal remedies by requiring binding arbitration and prohibiting class action lawsuits, meaning disputes must generally be resolved individually through a private arbitrator rather than in court. eBay also reserves the right to hold funds, suspend accounts, and monitor communications, which can materially affect sellers' financial access and privacy. You can opt out of the mandatory arbitration clause by sending written notice to eBay within 30 days of accepting the agreement, as described in Section 19.B.9.