I think the technical shortcomings of Nostr can be overcome, but not without some growing pains.  The design from the get go was inefficient at the data layer, so its no surprise that this bleeds into how events are exchanged to finally be seen by someone.  Ultimately people who publish something want as many eyes on it as they can get, unless they are tollgating access at the outset (but even still, the preference is for everyone to know about it). This alone means things like blastr are going to be a benefit for them.  On the flip side, people want to be fed quality (signal over noise) in the most efficient manner. I want less posts of the same, and I want one or few places to go to get it.  I think some of this is only enhanced by paid services were all parties have skin in the game, vs just the relay operators footing the cost, and client devs giving up their labor for free (no, v4v does not work to cover labor costs).

I also agree on the seed culture to an extent. Nostr is still overly weighted to Bitcoin, and its repetitive NPC style postings, and is even plagued by Bitcoin centric features.  To date, there are still no zapless polls available in Nostr, cutting out a good mechanism to get quick tallies of peoples choices, and the seemingly forced usage of Bitcoin for relays and services that charge fees can also be a turnoff to those more used to a world where they can pay with a credit card on a recurring basis.  On topics, I want to see more of the variety of posts about peoples hobbies and interests, events they've attended or trips taken etc but this still is in short supply compared to Bitcoin and Memes which handidly dominate nostr discourse.