Google will allow you to "disavow" links from spammy sites that are pointing to yours, so there's no real reason to ask people to remove them.
Another problem that seems to be on the rise is corporate shills. In the past these were easy enough to spot, they were people who would go to blogs/forums and spam them with blatant attempts at promotion.
Now they seem to be getting much better, they will come to a site like HN and read the comments that people are posting and will write their own comments in a similar style, not embed links and fly under the radar as legitimate users.
There are marketplaces for selling aged accounts for these purposes. This makes me very skeptical of any type of product recommendation from a website user.
Another problem that seems to be on the rise is corporate shills. In the past these were easy enough to spot, they were people who would go to blogs/forums and spam them with blatant attempts at promotion.
Now they seem to be getting much better, they will come to a site like HN and read the comments that people are posting and will write their own comments in a similar style, not embed links and fly under the radar as legitimate users.
There are marketplaces for selling aged accounts for these purposes. This makes me very skeptical of any type of product recommendation from a website user.