I'd suggest retiring the
anchors tag since it's ambiguous and using more specific tags instead, such as
snow-anchors, etc. The
setting-up-an-anchor questions could be migrated to
I think this would do much to clear potential tag confusion on these items.
The problem with this is unwanted tag fragmentation. The reason why umbrella tags are a good thing (especially as we are talking about very few questions here) are described in this answer:
So if you feel the need to retag with specific tag, please leave the general tag anchor in place as well.