People are very good at understanding value - and even better at parsing the fluff they don't care about - like decentralized nature  or big tech overreach etc. These things concern big voices or developers - not normal users . 

The only thing that is helpful to normal users (so far) is  #nostr offers a single sign on  - but that becomes useful only when there is more to nostr than pure social or social-esq apps  .. spreadsheets  , documents , commerce , travel , research , dating , gambling  .. which means nostr must be a creators' tool before it becomes  consumers' 

Thus there is no good reason to promote it to end users as of now  .. if you build  good they will come .. 

 That said - the properties of nostr are very useful for developers .. so you will see lots and lots of new developers choosing nostr as their only platform for creation  - that will automatically create an influx of new users  over the long arc ..