This is pretty typical, a token generally has a higher starting price due to launch and fomo, then a lot of people dump the airdrop immediately and it if the token doesn't have a strong value people continue to sell it. Tribes tokens are heavily sold off due to fact they are free so people tend not to value them much and most people don't really care about the token itself, just the rewards they bring.
Pob/Vyb are also a general community token, which tends to be sold even more often once the initial high ROI wears off.
Being free is an important reason for the tokens being not valued.
The jest I have got is that only tribe and topic rigid tokens (such as Leo and SPS) may be out of the list of shitcoins