steamsteam-trading-cards
I have a large number of steam trading cards and for me they are just filling up my inventory, I have no interest in doing anything with them except selling them. Is there any way to mass sell all my steam trading cards?
Note that this is not an invitation to add me on steam for trading that system is too slow for me and not worth my time.
Valve days change over at 10 AM Pacific Time, so an expiration date of the 27th implies that the moratorium will expire sometime between 10AM Pacific on the 27th, and 10AM Pacific on the 28th.
The duration of the moratorium is 5 full days, so if your password is changed at Noon UTC, you will be able to trade again at Noon UTC.
I'm afraid there's no way to opt out of these recipt emails from Steam. However, if you use Gmail, you can create a filter.
Click ⚙ > Settings
Filters tab > Create a new filter
Put noreply@steampowered.com in the From field and You have sold an item on the Community Market in the Subject field then click Create filter with this search
Finally, if you wish to archive but not delete it, check Skip the Inbox (Archive it) and then click Create Filter
Best Answer
Having just looked into this same challenge, Steam Inventory Helper (the originally-linked-to answer) has been reported for spying on its users. The replacement recommended in the linked Reddit discussion is Steam Economy Enhancer userscript. N.B. It must be installed through Tampermonkey (or Violentmonkey), but is open source and thus far, well received in the community.
It also works well on Firefox. Source: Personal experience of unloading all of my Steam cards in the last five minutes...