How many backlinks should i obtain per month?

There is nothing wrong with either.

It's just one takes forever and another provides results within days/weeks/months.

They are both strategies with various risks involved. I actually use both, i have longterm authority sites that get people coming back each day to consume content, i wouldnt dream of throwing aggressive links at this site. It has respect, authority, tons of great quality metrics etc.

But then at the same time i can create a single page on a blogspot.com subdomain, throw a ton of links at it and have it ranking page #1 in 2 weeks.

I also have friends who have had completely white hat sites wiped out by the latest updates. No one is immune. And the "churn and burn" strategy may be more viable than ever because so many innocent folks are going down at the moment. I know lots of people who have lost their high qaulity websites. I do my churn and burn website and look at the loss as "just a cost of doing business".

The only difference between me and a lot of people on here is they think Google is on their side if they play by the rules. Google doesnt care about anyone here.

Anyway,

Both strategies can make money, neither is right or wrong. One might be a better long term viable business. But it doesnt make either right or wrong. I actually power my money sites with those short term sites and get links through other methods as well.

I actually think my solution is the best, because it gives you protection which ever way the Google algorithm goes.

That being said, unless your in it for the longhaul and cant wait months/years without seeing meaningful traffic from Google and can afford to do so (Even with the potential of it being wiped out for no reason)... then by all means, go ahead and create your white hat content site.