I've tried reporting it, but is there another way to delete/report/escalate situations in which erroneous Karma/ratings are received?
You can report to a mod
I reported false karma before, but nothing happened until the person ended up getting banned later, and then I had the option to hide that level. I sent proof, too, for why it was false. Maybe ask by tagging a mod here?
I think there is a report function next to your karma
You've already reported the Karma twice in a single day. Currently there is a sizable list of Karma reports we're working through, but they require more details to be confirmed before a decision is made. Please remember, Mods are volunteers. We address reports when we can donate our time to do them, which can vary from each day or week. We do try to get to things within a day or 2 but sometimes things do get backed up or mass influxes of reports do make things take longer. We will address it and either the Karma will be left or removed based on what is discovered; If we need any additional details, we'll reach out to you.
Rubbish: Please refrain from posting meaningless threads and one word (or short) nonsense posts. [netrunner]
Thanks for all the suggestions and thank you netrunner for the update.