It seems likes this is mostly an issue of scale, in well-traveled areas where lots of people go it's not going to make a lot of difference, while remote areas that could possibly see lots of sudden traffic, it would not be a good thing.

Also was one to be an ["outdoor influencer"][1] with thousands and thousands of followers rather than an average person, the effects could be that much more severe.

>On the one hand, there’s the notion that posting content on the outdoors inspires others to get outside (see: #OptOutside, et al.). On the other, there’s the very real fear that posting photos of hidden hikes and hot springs invites an influx of visitors these places lack the resources to handle.
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>Geotagging can also get specific, and that’s where the real issues start. “We’re having a lot of problems with people geotagging hidden or sensitive places,” Boué said, adding that these places don’t always have the infrastructure to handle a lot of new visitors.

[Source][2]

There are any number of small specific things in the outdoors that are preserved because not many people know about them, geotagging hurts that preservation.

  [1]: https://outdoors.stackexchange.com/questions/20308/who-are-the-group-entitled-outdoor-influencers-and-what-are-their-activities-r
  [2]: https://www.racked.com/2018/8/27/17719792/outdoor-influencers-leave-no-trace-bears-ears