Even if we exercise vigilance on each and every project, sometimes, we don't know the true motive of the dev team.
So to avoid being screwed, better invest on projects with active use case already or their app is already existing in the market.
Because most projects that are in alpha or beta stages, will never get out of this stage up until they abandon the project.
Projects that disclosed their team members don't mean that they will not screw people, because even if they are out of public, they can still run away because chasing them would be so much work to do. So they have the guts to show in public, because running after them in case, will only be futile. And they know it.

I agree that there are many ways to avoid fraud, but how to avoid risky investments? All crypto investments are risky, bro. If you don't want risky investments, kindly don't invest in crypto. Bro, only brave people will invest in Bitcoin. If you feel afraid of the risks of crypto investment, I suggest you not invest your funds here.

Thats what it is and i agree common sense is still useful when try to identify crypto currency investment scam but a common sense individual who is not aware of how to make technical research through the whitepaper, roadmap and the project team background won't figure out the red flag.

That's the main bait for those who wants to gain more by risking their assets ended up being scammed. That's why everyone were told to DYOR and TAYOR because of these kind of high profittable projects. Unless it has a good fundamentals that will improve the project from time to time, in that way, you can be sure that you're investing on the right project.

We have to thank you for that. Good article to help you determine if a project is fraudulent. Investors do everything to capture and win every user's attention. Their social media and the developers behind it is an important factor to help us know if we are on the right track. This is why we have to do a series of research before joining a particular project.

There are several ways to identify cryptocurrency scam projects. First, the bounty manager, the team, the use case plus effort of the project team. If there is IEO, IPO, IDO etc the exchange or dex is also part of it.

In 2016, attackers have successfully upped the ante, hitting target servers with traffic in excess of 1 Tbps. And what’s so unfortunate about it all is that, for potential attackers, it is becoming cheaper and cheaper to conduct such attacks, with so-called “DDoS for hire” wherein attackers can simply pay to target and bring down a website.

There are different methods or ways to identify or detects Scammers on crypto currencies. But all the ways that have mentioned by the OP from the link

https://medium.com/@Peter_UXer/how-to-identify-cryptocurrency-scams-813c32816ddf?source=friends_link&sk=da150ce8128c348da4b0dfdbf57e8e12 

have been tried by people to avoid Scamming yet, people still fall every day and night. So best way to detect it is wisdom and knowledge.

Scammers are bringing new methods to defraud the unexperience users, Traders and investors in the social media and Internet (sites). Therefore, wisdom and knowledge is needed to identify the tricks the fraudsters will use to scam. Another way to identify crypto currency Scammers is the IP address. Before you sign up to the site, check the website ip and ask people that know ip address very well  before you sign up.
I also want to recommend that since the Scammers have developed their skills to defraud people, the anti-scammers programmers should also advance in their programming knowledge to create a program to detect fake sites.