On the Skyblock Survival (skyblock.net) server, many of the warps seem redundant as they warp you to the exact same position. The largest example is the fact that the warp for grass, shopkeepers, and villagers all lead to the same place. Removing some of these warps may just help clean up the warp menu as well as possibly removing special event warps such as Xmas, Easter, Halloween, etc. (unless you want to keep them for year-round visiting).
They're suggesting removing multiple warps that lead to one place and just make it one warp. I support the removing of the multiple warps to one place but not the holiday ones - they're there for memories
A lot of the duplicated warps are an alias so if possible just remove the duplicates but keep the alias still so if you aren't using the warp selector you can still use the command. Eg remove /warp hostile from the gui but keep the warp command itself if people are more used to typing /warp hostile
It was an example but yes which ever one stays in the menus and the ones that are only useable by command can probably be examined in this case