First of all, I beg for sorry. Talking about spamming has nothing to do about programming.
@Handoko:
I believe it is a bot, simply because it doesn't make any logic in my mind to spend such an amount of time looking up an older message, copy that, then paste that for a spam message and add the spam link(s).
From bloggers' or web owners' point of view, it's worth. I was blogger, I understand how desperately they want to increase their website/blog's PR (
https://en.wikipedia.org/wiki/PageRank). Some even ready to pay money to raise its SERP (
https://en.wikipedia.org/wiki/Search_engine_results_page). If you're active in SEO marketplaces, then you will see lots of buyers there, price start from $5 to thousands of dollars.
For the bloggers and web owners who don't have much money, they will do it themselves. The spam - ufabet - is a returning spam. He failed several times, so (s)he learned and improved his/her techniques. He just randomly copied some questions from this forum or SO, which is very easy actually, to make the question look genuine.
Plus, this forum has high traffic, it has high rank in Google' eye. If a spammer really can make a back link here, it's a great boost for their website.
If it is a bot, how do you explain:
- After about 10 minutes I replied, the spammer logged in
- The bot must be stupid to revisit and login just to check the reply
- Or the bot is very smart to be able to do so
- Can the spammer write such clever script or will s/he afford to buy it
I know bots that has AI you mentioned. I ever asked support on a website, but then I realized I was talking to a chat bot, they simply stupid. About spam bots, not very hard to keep it minimize, at least on WordPress/Drupal site. Just use ProjectHoneyPot and some spam prevention plugins. That really stop almost 100% bots (based on my experience).
@Handoko:
It simply doesn't add up to waste such amount of time for so little profit.
It's all about money. If the owner managed to raise the website to PR5 or above, he can make money easily.
To understand spammers, you have to look from their eyes, think what they're thinking.
Anyway, sorry of being off topic from programming.
Just like Mr. Thaddy said, just report to moderator is the best thing we can do. No need to discuss about it.