There's kind of like an explosion of gig / task / microtask marketplaces right now. Numerous shitcoins have their own (e.g., Timerr is just the latest) now. And on the other extreme, a number of earlier bitcoin-related ones are either defunct or have no activity.

Workers don't want to waste time on multiple platforms to find work, and employers want to go to the one platform where all the workers are (which is Upwork). So gaining traction is incredibly difficult. And the level of functionality needed is beyond just a simple paragraph of text. There is work (and employer) reputation / history, escrow of the payment before the worker begins the work, dispute moderation, etc. -- so Stacker News would not, without adding significant additional functionality, be suitable as an alternative in this space, IMO.

Here's a post with a pretty comprehensive list of the space:

Freelancing platforms which pay in Bitcoin https://cointastical.medium.com/freelancing-platforms-which-pay-in-bitcoin-e38be56166df