Depends on what kind of editor we are talking about.
Some editors are helpful to creators or improve the projects. Tapas editors appear to be rather chill and choose a rather diverse range of content. Also on tapas there's a ladderlike system where anyone regardless of ethnicity, gender or sexuality can build a fanbase simply through good hard work and gain Tapas editors attention that way. People are chosen by the audiences, rather than someone picking it out for the audiences before they see any of the applicants.
Editors in the sense where artists help each other out or in indie projects is also a positive thing in my book.
Then on the other hand there are editors/"gatekeepers" that let their personal preference poison the industry and limit what kinds of content is allowed into the public. This goes mainly for the traditional publishing business where it's difficult for transgender individuals to be taken seriously, LGBT people have been left out for the most part until recent years, someone looking to work in comics is, depending on editors and gatekeepers, less likely to make it if they have dark skin, and here in sweden you can forget your dream and toss it to the sea if you draw manga styled content. A lot of this is based upon the elitistic role these people have gained throughout the years simply by being the gatekeepers. They delude themselves that their opinion and preference is of highest and unquestionable importance.
Then you have really shitty pushy editors like the ones in japanese manga industry. For example the dumb fuck that suggested Mini Moon should become a thing.
Basically, my opinion of editors is positive in regards to most webcomic related instances as well as in indie project groups where people work together out of passion. I have a very negative opinion of editors in traditional publishing business however.