No perceived consequences here. I have limited dairy to half and half in my morning coffee for the last month to cut through a weight plateau. This I did. I also gave up wine and was stricter with portions.
The only problem I have had with dairy is constipation. However, if I consume large amounts of vegetables, especially cooked, no problem with consuming large amounts of dairy.
'Mucus' or congestion: I've never associated problems with dairy. In fact the worst congestion I have had in the past few years was the last couple nights, on my low dairy diet. My DH is a vegan and has awful congestion. Seems to me most congestion is caused by dust.
It is known that adult lactose tolerance is a mutation in many Europeans and East Africans.
Baxter State Park
55 years old, 5'4"
1/1/11 weight: 172 and grumpy
Lost 7 lbs on calories in, calories out
Went paleo/primal 1/1/12
Current weight: 144 and happy
Goal weight is 130 more or less