Item market taxes start Feb 22, then +1%/month until it hits 5%
Right now bazaars are mostly useless unless you can afford to be active for ~20-22h/day pushing your bazaar in all possible channels (chats, forums, discords, bizmor ....), if you push enough you'll get customers that might pay above market price (likely only the most lazy), but may also buy other shits that you have that they weren't initially looking to buy. Sure, little predatory, but it's really the only way to make it worth it for now.
Once taxes start, bazaars will have more of a spot in the economy, but you'll still have to put in effort and time into them to make them anywhere near as profitable as they used to be. Curious to see what the economy will look like once tax season starts. We'll see
...at least until someone makes a script that shows cheapest bazaars on the item market and either attaches it to torn tools or it becomes another common install anyway :P