I have many knives with mirror polished blades, I don’t have a preference and am not against using them. The finish is easy to maintain but I’m also not cutting cardboard or other abrasive materials that would lead to a lot of scratches.
The mirror finish is a staple on a Loveless style knife, I think they look wrong without a mirror finish and I hate when makers attempt a mirror finish but skip steps leaving behind faint scratch lines that they try and hide by over buffing. Do it right! Like Bob Dozier does.
And if you ever get a knife from Mamoru Shigeno, be prepared to see the best mirror finish in the business, I haven’t seen many that compare to the knives I have from him. This stag knife has been through a bunch of deer and the only marks on it are on the guard from the knife going in and out of the sheath.