Manganelo effect

Is when a bunch of people find themselves using some other site, than the one they should have been on. They can swear, that site name was different and even logo looks different, yet everyone in forums and comments assure them this is the original site and it has always been this way. Bending under the assurances of the others, they start to doubt themselves and even believe it was Mandela effect, yet in truth they were right to begin with and people simply made joke of them by lying that this site never had any changes, when in truth it just recently had some update.

What the hell? This site was called Manganelo before! Why is it writen Manganato.
No dude, it has always been this way.
Guys I am sure the logo was different!
Dude, what's wrong with you? This site has always been this way since its creation.
Wow, I think it's the Mandela effect!
Ahahah. No you idiot, it's Manganelo effect! He actually believed us, what an idiot.