RicoElectrico
That wouldn't be in line with good practice: https://wiki.openstreetmap.org/wiki/Good_practice#Don.27t_use_name_tag_to_describe_things

Now I see the tagging isn't the recommended one: it should be this: https://wiki.openstreetmap.org/wiki/Tag:historic%3Dflood_mark instead of what is now: https://www.openstreetmap.org/node/4447984029