Based on the phrasing, "tagged pets auto buyer upd" refers to a specific type of software tool or script used in online social gaming platforms, most notably (and historically associated with apps like Pets Live! or Friends For Sale clones).
Updates often include features to manage the "Buy Again" option, allowing owners to buy their own pets back to increase their value and cash-on-hand.
Use a browser extension like Autofill to pre-populate purchase forms. Refresh the page every 5 seconds. When you see your target tag, you just hit Enter. This reduces click delay from ~3 seconds to ~0.5 seconds.
The term "UPD" is shorthand for or "Updated Version."
