I already described this problem shortly in my previous topic,
https://bitcointalksearch.org/topic/anatomy-of-scams-4474753 but here I will try to dig a little bit deeper.
All of us know that due to enormous amount of scam ICO's and crypto projects, Google, Facebook, Twitter and YouTube banned all adds and advertising related to crypto. So, only Microsoft bing, LinkedIn ads and bitcointalk are available for crypto advertising at the moment.
Also bitcointalk mods are sending all giveaway threads to trash can, because of new regulations on the forum
https://bitcointalksearch.org/topic/incentivising-posting-within-one-or-more-threads-is-not-allowed-2103690 That happened after Deepopnion "Airdrop" scam was introduced, that broke all records of amounts of posts in one thread by paid shills "Airdrop Participants".
https://bitcointalksearch.org/topic/ann-deeponion-tor-deepvault-cryptopia-airdrop-2440-we-dominate-2006010 Because of that, scammers changed their tactic and now they are using so called "Shilling Services" to bump their threads on bitcointalk. I will try to explain how it works:
1. Scammers are buying accounts in Russian and Indian boards "Goods" where you can buy any account starting from Juniors and finishing with Legendary members. Junior member account is around $15 and scammers prefer them, because they are cheap. I used to know a Russian dude, who bought 40 Jr.Member accounts and hired 4 guys for $7 a day each, to post from all that bought accounts daily in one thread.... So if you see the new thread with a lot of posts from newbies and juniors (Answering each other and saying how good this project is) just stay away from it. Always check the posts history of suspected paid shills. Usually you will find a big gap in posts (One month and more) Also very often you will find out that dude was posting in Russian or in other language and suddenly started to post in English.
2.Scammers are hiring professional paid shills. (Service) That services are relatively expensive $ 2 -3 per post (Only full members an higher ranked members are posting in the tread.) The problem of such threads is the poor English of Paid Shills. That dudes are using google translate or just copying the posts from other threads. But now scammers found a solution for that problem too. There are services that are offering "Quality English posts for posting in threads"
https://bitcointalksearch.org/topic/--4427536 That services are selling posts that are related to crypto, written in perfect English language.
Some examples of threads bumped by using services mentioned above.
https://bitcointalksearch.org/topic/annico-stage-1-powerloan-lending-bonus-15-token-3223704 (Confirmed Ponzi Scam)
https://bitcointalksearch.org/topic/anntoken-sale-nobar-the-complete-crypto-commerce-3202250Feel free to add anything.