The WTS (Want To Sell) section is for one-off sales threads only, for items on one of the Freedom (PvE) servers (or to be supplied to a Freedom server) - this section is specific to the Northern Freedom Isles. PvP servers have their own sales sections in Theatre, and the Southern Freedom Isles have their own buying and selling sections below.
If you're adding new stock, or making open-ended amounts of stock, or items to order, you should be posting in the Merchants section: https://forum.wurmonline.com/index.php?/forum/402-merchant-ads-hm/
Editing your sales post to remove sold or no-longer-available items is acceptable, as is adjusting your pricing. Adding new items to your sale will push you over to Merchants. Sales threads with excessive amounts of items may also be moved to Merchants.
If you're wanting to auction your items (i.e. you want people to bid or offer against each other), you should be posting in the Auctions section: https://forum.wurmonline.com/index.php?/forum/399-auctions-hm/
You can ask for a price check or offers in a sales thread, but if it starts looking like an auction, your thread will be moved.
If you're offering / requesting a service rather than goods, you may be better off posting in the Classifieds section: https://forum.wurmonline.com/index.php?/forum/400-classified-ads-hm/
If you want to buy something rather than sell it, then you should be posting in the WTB (Want To Buy) section: https://forum.wurmonline.com/index.php?/forum/398-want-to-buy-hm/
If you want a thread closed, please edit the first post in the thread to change the title to include something like '[CLOSED]' or '[CLOSE PLEASE]'.
From the 1st March 2020, trading game assets for real-world money is against the rules. Any posts or threads offering this may be locked or removed.
Each thread will be treated on a case-by-case basis by the forum team, and these guidelines are not exhaustive (and may be updated from time to time). If you're not sure why your thread was moved, please contact one of the moderators (current list of staff here: https://forum.wurmonline.com/index.php?/topic/4976-wurm-staff/ ). If you see a thread in the wrong place, please report it (once!) and a member of the forum team will review it.