After grinding leetcode for months, and going through 4 interviews, you feel like you’ve “finally made it” which is why people post cringey posts like that.
The people that don’t grind leetcode like that don’t feel the need to make posts either.
Because they've finally transformed themselves into the husk of a human and are now ready for their new soul crushing dev role at Amazon? More seriously most linkedin posts I see are recruiters feeling sorry for themselves despite their bad behavior and looking for social support because of their plight.