"I would add it as a beach but that is not in the options. There is a long sand bar of white sand here at low tide."
POI name: Sand Bar Beach
POI types: tourism-viewpoint
OSM data version: 2017-11-17T20:18:02Z
#mapsme

"Wake Park Barnaul"
POI has no name
POI types: man_made-pier
OSM data version: 2017-08-17T15:51:02Z
#mapsme

"there is a walking bridge here"
POI name: Кача
POI types: waterway-riverbank
OSM data version: 2018-08-04T14:22:01Z
#mapsme

"the terminal gas been destroyed anout two yaers ago from the looks of it. I added the new one."
The place has gone or never existed. This is an auto-generated note from MAPS.ME application: a user reports a POI that is visible on a map (which can be outdated), but cannot be found on the ground.
POI name: Victory Liner Bolinao Terminal
POI types: amenity-bus_station
OSM data version: 2017-11-17T20:18:02Z
#mapsme

"Vatican Museum & Sistine Chapel Entrance"
POI has no name
POI types: entrance
OSM data version: 2019-07-27T07:02:33Z
#mapsme

"Vatican Museum Entrance"
POI has no name
POI types: entrance
OSM data version: 2019-07-27T07:02:33Z
#mapsme

"There's nothing there. the drinking fountain is gone. The area has freshly packed dirt and just a manhole cover."
POI has no name
POI types: amenity-drinking_water
OSM data version: 2019-08-30T18:41:13Z
#mapsme

Bunksurfing Hostel moved to the center! 59 Children St.

Bunksurfing Has moved to 59 Children St.
And PunkSurfing never existed. ;)

How can I delete "Punksurfing Hostel" and the old "bunksurfing Hostel" nodes?

It's now in the center and the new node exists.