I have seen quite a few people buying xrumer and senuke backlink blasts here. Well, I am a full time optimizer since 8 years and run my own business. Here is what I think you MUST read before screwing your own website. 1. Basic More the number of backlinks = better your rankings = WRONG. Relevancy is the key guys. If a same niche website is linking to your site, that is the time it will have a little juice. But having thousands of links that are just spam, you are digging your own grave. 2. Frequency: A website that hardly had 10 backlinks, just within a day, it reached on 1000's of backlinks, do you think that will help? NO! That will get your own ranking screwed. Google algo is very powerful when it comes to the frequency check. A website that has 10 backlinks after 4 months, might get 10-12 more backlinks a month. But having 1000's of links all of a sudden will get you banned or sandboxed. 3. Logic: So your links are posted on thousands of forums and website with anchor'ed text! WOW! [NOT] Well, I really don't have word to explain the ignorance of logic here. If a forum is allowing you to post spam, do you think you're the only one spamming there? That forum will have thousands of spam thread. Which means, that forum doesn't have any juice and google is already not considering its backlinks. Now you having link from that forum will put you down too. As you are passively being linked from someone who doesn't stand anything. In fact, is a spam-full-board.
People who buy Xrumer blasts tend to be idiots from developing countries who think SEO hasn't changed since 1999. I don't have nearly as much experience as you nor do I run a marketing business, but honestly, anyone who thinks shitting up a bunch of forums is going to help them deserves to be banned from Google.
So Xrumer blast effect will be posting and spaming other sites this will be effective untill the moderators or webmasters see the spam and delete it, what a waste of money and time. Putting effort into creating useful content is much effective
Software like this that "builds backlinks" seem like complete junk to me. Google is changing and I think people need to revert back to hard core manual link building on seriously RELEVANT websites related EXACTLY to your niche. (IE: Your site about "cherry coke" ONLY comment on websites who focus on Coke) Take the time out of your day and stop being lazy. Its like a bunch of kids are running around the internet trying to make free simple money. I'm 20 too, I always like the easy way in things, but with SEO I sit my ass in my chair for an hour a day and find links manually and create a nice meaningful comment