The most interesting thing I’ve done as a Local Guide was… account recovering) It happened when I optimistically checked an option in Google profile for deleting traces of actions older than 18 months.
All of my old contributions for Maps were deleted, including reviews, photos and so on)) Rating and some calendar items also gone. For sure the page with this option didn’t has detailed description of this “mode” (and doesn’t has now), and not a word was said mentioning calendar and maps data erasure )) Surely no support answered to my shocked complaints before I connected Google One service ) They nicely tried to recover everything but… Now my Maps “score” partly recovered, though not in a full volume. But still that was a funny exciting and interesting situation.