From X:
"There are two glaring reasons to support BIP-110:
1) Don’t leave the gate open for contiguous data that could be used by law enforcement to go after node runners. This will kill decentralization and bitcoin.
2) Piling up non-monetary data on chain will eventually price more and more people out of running a full node (yes, you need a full node for several reasons) and, again, decentralization will fade until bitcoin will be ripe for takeover."