Lot of
Intolerance from the
Nature Lovers on display here. Spiders eat the really repulsive insects that may be in your house. Earwigs, Silverfish, Ants...etc..
IF you prefer to support
Those creatures, then by all means KILL every Spider you see.
I look at Spiders as the Bug Police.

NB
PS: I have heard that all dock spiders (NH) over the weight of 4 ounces must be registered with the DEM or YOU risk fines.