You risk getting run over by a car when you cross the road. Don't worry about all the na sayers. You run a risk if you are foolish. Same as crossing the road where there is traffic.
Read allot. Learn. Start small. Don't get greedy.
Google would love it if everyone went to them and paid for ad words!
They and Matt Cutts love scaring everyone.
Using automated software like SEnuke is seen as blackhat. It really is not. It is just automated software that can book multiple websites. Use it gently and it will be good to you. Get greedy and you raise flags. Everything in moderation.
Again, do some research yourself and learn. Do not believe everything you hear about Black Hat, because not many people really know about it.
Let's say you want to get your Hub on Yahoo Answers. How do you do it? Maybe get a friend to ask as question about your niche..i.e. back widgets. Then you go in and suggest your Hubpage. Is this blackhat?
If you have 20 friends ask similar questions and you make 20 different emails and answer that question with your Hubpage, is that blackhat?
What about making 100 emails for asking and 100 emails for answering! In essence, the greedier you get the more it looks like a Blackhat method.
So the greedier you get the more you raise red flags!
You can always go to my website and learn all about this.
Here is something you should be aware of.
IF YOU USE WHITE HAT METHODS THERE IS 99% CHANCE YOU WILL NEVER MAKE THE 1ST PAGE OF GOOGLE EVER!
UNLESS YOU PAY GOOGLE FOR THEIR EXPENSIVE AD WORDS!
THAT IS A FACT!
Unless of course, you have a domain name that has a long tailed keyword and no competition.