I have seen brand new websites rank for extreme competetive keywords like "payday loans" or make money online, they usually use wordpress plugins or joomla extensions to get a part of other sites page rank with hidden backlinks. And it works, but the payday loan term is so abused by now that all brand new websites ranking for the term on page one is probably manual reviewed by google and then slapped. But for other terms the rank and bank method with hacked sites works even today, there is no wordpress plugins etc, the simply hack other sites with high pagerank and high sql vuln to get into the database and dump the admin logins then inject their backlinks in hidden mode. They are using sqlmap for this. i have seen sites in viagra niche use hacked sites just for backlinks, their number one quality backlink was coming from a link ending with php?id= something and i tested it and it was vuln for sql. The amazing part is nobody knows that their site is being hacked!!! The rank and bank method is illegal, so does who do this can do some jail time! so what do you think about it is it worth it? my opinion on this is -NO because it is not long term solution for rankings it is just rank and bank and get slapped.