Custom email domain: threat model & pros/cons?

Domain getting seized are very, very rare. Hosting website, especially commercial site are a different story though. Dmca and copyright weaponised by competitor, and for user generated content sites theres also problem of dickheads sabotaging by uploading csam then self report etc etc. Obviously sending spam will be seized or suspended too if got report, those “cold email outreach” mass spam operations. Domains for personal email usage the chances to get in trouble are close to zero.