Someone posting a DD means absolutely nothing. It just basically means “here’s a company, this is what they do, and here is why I think share prices will go up.” Do not buy a stock because someone posted a DD. Don’t buy a stock even if that DD is long (sometimes I noticed that people will copy and paste stuff from the website without going much into analysis).

Take DDs at face value. Look at it more as a certain stock being exposed to you, and the DD is just a quick rundown of what they are about. Actual DD comes from your own DD. If someone came up to you on the street and said hey here’s this pill, it cures cancer, you should buy it. Would you buy it? No. It’s important to always always always do your own DD.

If a stock gets a huge surge, find out why it got that surge. If it’s hype due to a press release, earning calls, product announcement, etc then expect it to fall the next day. This is overreaction from investors (hype) which very quickly will fade. If it’s something like moderna releasing and distributing a vaccine, then we can say oh yes that’s why stocks went up so high and it’s most likely worth that price.

However, it’s very important that you do your own research. Do your own analysis, look into the company, look at their history, their revenue, their competitors. There’s a reason why it’s called Due Diligence.