
Originally Posted by
deepsand
As relevancy is immaterial to PageRank, the only real concern is re. the target Domain's Link Profile, where, in the absence of evidence of substantial link manipulation, the worst that can happen is that a relevant link is judged to be irrelevant, and thus contributes less than it should.
But, it should be noted that that cuts both ways, in that an irrelevant link may be deemed to be relevant, and affects everyone.
Absent the ability to either know the effects or control them, worrying about it is fruitless.