How good is Drip Feed Links? (Internet Marketers)?

[Jake]

While getting backlinks at a regular pace rather bursts of hundreds or thousands at a time is a good thing, blog comments and forum posts are some of the lowest value backlinks sources, that are commonly created by software robots on lower grade sites that tend to auto approve submissions.

Google has changed things up going from not caring much about backlink sources, or at most ignoring those identified as spam links, to penalizing sites that don't respond to an "Unnatural link pattern" warning they have sent to thousands. While previously just ignoring those identified as suspicious backlinks to allow for the possibility of a competitor sabotaging a site's search ranking, they now are playing hard ball, though they have added a Disavow form for webmasters to report they don't want and didn't create a backlink.

One must now tread more lightly, using more than just 2 types of backlink sources to maintain a natural looking profile, also keyword anchor text should be limited, only having it on 1/3 of backlinks would be conservative, mixing the keyword with larger phrase variations helps as well.
Bearing in mind that you may want to remove some of these links in the future, by perhaps eliminating the url of some inner target pages, you might make light use of such a backlink service, ideally in a trial period where you can check the quality and page rank of each page providing a backlink. Some links from ranked quality sites are 100x more valuable than junk backlinks, a smaller quantity of links would be a lot easier to manage should you have to remove some. Do Not direct questionable backlinks to your home page, where you don't have many options for shedding them, you can't just change the address like for an inner page.

This same guy owns at least 140 web site names, with no apparent emphasis, typically someone running a private blog network would conceal the common ownership better, but these could be some of the backlink sources.