What you're doing is vandalism.
I don't care if you understand what seamark:small_craft_facility:category is, but it's part of an approved schema used in OSM. Please don't remove tags you don't get.
https://wiki.openstreetmap.org/wiki/Key:seamark:small_craft_facility:category (also used for inland navigational charts).
You've removed the proper rendering on https://map.openseamap.org/?zoom=17&lon=11.33732&lat=47.98895&layers=TFTFFFTFFTFFFFFFFFFFFF
If you don't like the tagging schema, please get in touch with the OpenSeaMap community BEFORE removing used stuff.