No different from the rest of the crypto space..the momentum behind SLP was destroyed when crypto was taking off, along with one of the main reasons to use memo. Cause and effect
The momentum behind SLP got destroyed by every idiot and his son thinking all they needed to do to get rich was create a billion tokens then list them for sale. The market was swamped.
Just look at the 179 useless shittokens I've got blocking up sats. And these are the ones that I just sent here after getting bored sending them to other token dumps.
No different to the crypto space generally.. something like DV has more backing it than "shiba inu". If they were worth sats you wouldn't call them useless so it's circular.