You can map this organization itself with a node at their official address.
And once there's a boundary for that graveyard, it'd great to map it as well.
But while there's nothing on the ground to define this feature, it's misleading to map it. You can read about these concepts that at osm.wiki/Good_practice#Map_what's_on_the_ground and osm.wiki/Any_tags_you_like#What_not_to_map
Also please note that cemetery and graveyard have separate meanings in OSM.
amenity=grave_yard
landuse=cemetery

They haven't replied to any changeset messages sent to them about issues with their edits.

This editor did the same thing in 121393300, 121393587, 121393743, 121394107, 121395223, 121911028.
They are vandalizing the map to make it look the way they want in upland game.

I've seen that site from your tags. However, OSM is about mapping what's out there in the world _now_. From what I can see on satellite imagery, there are no signs left of that cemetery/graveyard. If there are any signs, plaques, monuments or other physical things present around that location, you are most welcome to map them. However, a cemetery or a graveyard that existed at some point in the past but not any more would be more suitable for https://openhistoricalmap.org rather than OSM.

If they were originated from copyrighted sources, yes.

In addition to what you mentioned, there are also sources that have compatible licenses with OSM and they can be used for mapping.
You can also take a look at osm.wiki/FAQ#Why_OpenStreetMap? And numerous other articles on copyright on OSM's wiki.

You didn't add that data from from that website. You took it from another copyrighted source and as such it will be deleted.
Please see osm.wiki/FAQ#Why_don't_you_just_use_Google_Maps/whoever_for_your_data?
If you continue to add copyrighted data, your account will be referred to DWG.

Considering you map for upland, and considering in the past virtually every single edit from upland-related people have been either straight up vandalism or taking copyrighted data, I find it hard to believe that you have a friend that was there.

Considering you map for upland, and considering in the past virtually every single edit from upland-related people have been either straight up vandalism or taking copyrighted data, I find it hard to believe that you have a flyer to a local biz, while not being local to NYC. Would you mind showing that flyer?

Hello uplander.
Why did you change this node's tag and location?
Previous tag is more accurate to this business' function and previous location is more accurate to the storefront.
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Published using OSMCha: https://osmcha.org/changesets/122140446

Hello uplander.
What is the source of this data?
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Published using OSMCha: https://osmcha.org/changesets/122140324

Hello uplander.
What is the source of this data?
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Published using OSMCha: https://osmcha.org/changesets/122140252

Hello.
What is the source of this data?
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Published using OSMCha: https://osmcha.org/changesets/122140157

Hello.
This terminal is already mapped as relation/3778271
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Published using OSMCha: https://osmcha.org/changesets/122135772

Hello uplander.
What is the source of this data?
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Published using OSMCha: https://osmcha.org/changesets/122131660

Hello uplander.
What is the source of this data?
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Published using OSMCha: https://osmcha.org/changesets/122131599

Hello uplander.
What is the source of this data?
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Published using OSMCha: https://osmcha.org/changesets/122131528

Hello uplander
A parking lot is not supposed to be mapped as a node attached to the parking lot isle way.
Please see osm.wiki/Parking how to correctly map such feature.
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#REVIEWED_BAD #OSMCHA
Published using OSMCha: https://osmcha.org/changesets/122131426

This is blatantly a building, not a commercial zone. As such, this edit will be reverted.
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Published using OSMCha: https://osmcha.org/changesets/122125784

Hello.
This edit violates osm.wiki/One_feature,_one_OSM_element and as such will be reverted.
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Published using OSMCha: https://osmcha.org/changesets/122125699

Hello.
You added a node for a graveyard, however satellite imagery doesn't show such a thing there.
Could you please elaborate on that?
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Published using OSMCha: https://osmcha.org/changesets/122121591