Under the existing BIP process what ability do the BIP editors have to prevent bad ideas being BIPed and/or low quality BIPs?

[Bitcoin]

Under the existing BIP process what ability do the BIP editors have to prevent bad ideas being BIPed and/or low quality BIPs?

Under the existing BIP process (BIP 2) what ability do the BIP editors have to prevent bad ideas being BIPed and/or BIPs becoming especially low quality or biased?

Source: Under the existing BIP process what ability do the BIP editors have to prevent bad ideas being BIPed and/or low quality BIPs?