I got a question to SEO experts. Is it real to promote "porn" - query in Google? It is really competitive keyword. Is the game worth the candle? I mean getting a lot of adult traffic from top 10. I want to add: I have enough money to buy links and etc.
Yes, it's a very highly search term and can result in a lot of orgnaic traffic, 80% of it probably won't convert but it's still a lot of traffic. I doubt you'd be able to afford to buy enough text links to rank it within the 1st 3 pages. You'll need to do massive link building to achieve this goal.
Try and target other not so competetive keywords, not only will you not get anywhere near the 1st page with porn, its too generic anyway, I mean its not targetted exactly is it, is the person looking for free porn, paid porn, do they just want to read about porn, list goes on. You would be much better off going for more targetted keywords, with less competition.
I have some experience in SEO, but I didn't work in such competitive theme. How long I should promote this to look first results (e.g. my site on 4 page ) ? If I would work every day (buy ... , submit ..., etc) And one more question: how much money I must have to buy neccesery links? approx: 1k$, 2k$,3k$ or more... ?
Is this a new site? How old is your domain? Also buying links is frowned upon now by google etc, so you aint going to get anywhere fast doing that.
At the end of the day unless you are a SEO genius you aint going anywhere with porn anytime soon. Trust me. Focus on other less competitive targetted keywords, and obviously include porn, so in 3 years time when your site is doing amazingly well and you are number 1 for all your targetted keywords, you can then focus on being on page 1 for porn Thats all I can advice.