Windshadow has it basically correct, wherein if everyone can craft server's best capped builds because everyone had access to the same quality of resources, then it would devalue the top of the line quality crafts.
However, there isn't an economy for a lot of things at the moment not just because of server maturity (this server launched in October of '23), but because ease of access to loot and resources is so up-front on this server that many guilds and communities on this server tend to keep things in-house.
I think a better compromise might be to make those resource deeds No Trade Shared if they aren't already, and grant the maximum quality of a given resource, especially if you want to only keep it at 30k units or even lower. That way, you have a decent amount to work with and can still get more of it via your other toons if needed, but you aren't going to be able to just beat out people who have set harvesters down on resources and kept them maintained for the duration of a resource's lifecycle.
Making the deeds No Trade Shared also prevents them from being sold and shared around with other traders for potential abuse, but if you redeem a few on combat toons you can funnel them to your main crafter/traders to use them. The resources that come out of them might be capped and super valuable, sure, but it ends up limited to that redeemed resource.
I think that could be a healthier way of getting new and returning crafters out of the rut of bad cycles while also not totally ruining any potential economy that may come from the resource market. It may also incentivize those who have plentiful of high quality pools to sell some off, since they would have access to at least some capped resources in a steady stream if they regularly play. Just some ideas, and even though I realize my initial statement is contradicted by my suggestion of max capped/quality resources, I think the difference is subtle.
You wouldn't get much of a resource from the deed, so you are limited in what you can craft with them, but because so many crafts require very specific resources, it's not going to be a game-breaker, in my opinion, if the resource deeds were made to be better in that sense.