[Pseudoscience-is-malarkey (OP)]

Every house has these. I don't know if it's hair or carpet fibers or whatever, but they consistently form in the area of homes where carpet meets wall.

[RD]

Possibly spiked carpet-fitting tool puncturing rubber-backing, allowing dampness to seep through ?



Alternatively the marks may correspond with blobs of glue to hold the carpet in position.

[Karen W.]

Possibly spiked carpet-fitting tool puncturing rubber-backing, allowing dampness to seep through ?



Alternatively the marks may correspond with blobs of glue to hold the carpet in position.

Tv

Every house has these. I don't know if it's hair or carpet fibers or whatever, but they consistently form in the area of homes where carpet meets wall.

I have never seen anything like that but when blown up it looks like a stain from the heel of a shoe...or something..It doesn't look furry or fuzzy or I would say a dust bunny made up of rug fibers formed from foot traffic path but has tumbled around and somehow collected up on the wall like a lonely dust bunny....

[Karen W.]

IT DOES LOOK LIKE 2 MOULDY SPOTS TO ME...!

Don may be right about moistue...

BY THE WAY THOSE AWFUL OLD RUG STRETCHERS


WERE REAL KNEE BRUISERS!!