In keeping with Tildes' general philosophy of supporting budding technologies that have the potential to reform large domains of the internet for the better, I think you should look into Flattr (www.flattr.com).
A Flattr subscriber reserves any set amount of money per month which will then get automatically distributed to content creators on the web, in proportion to an algorithmic estimate of how much the user has used that particular site or resource.

First-tier support for Tildes on Flattr would be as simple as registering an account and connecting the tildes.net domain to it. From then on, a percentage of the reserved amount would automatically get transferred to Tildes' account for every Flattr user who uses the site (I myself have generated 64 "Flattrs" on this site as of this moment, which would lead to a significant portion of my reserved $5 to be transfered to Tildes for this month).

For sites that host content creators, like Twitch and YouTube, Flattr offers a deeper support, where Flattrs go toward individual content creators as well as the host site in itself. An intuitive way to connect Tildes to this feature would be to have each upvote of a Tildes post generate a Flattr for the poster. I believe the money would then be divided between the user who was upvoted (if they have a Flattr account) and Tildes' own Flattr account, but I am unsure about the exact fraction that would get routed to the individual poster as opposed to Tildes itself. I'm sure Flattr's tech support can answer this in detail, though. Flattr is currently owned and maintained by the company behind AdBlock.

What do other users think? Is Flattr's model good? Are there other sites or providers that offer a similar service? A notable difference between for example Patreon and Flattr is that Flattr is indirectly based on a "pay what you want" model, which marks a pretty significant shift in economic control from producers to consumers. This will obviously have both advantages and drawbacks. Personally, I think the model has a lot of potential on an arena like the internet, where the sheer number of potential consumers can make microtransaction-based models like Flattr really powerful.