Most cachers use their GC account to collect both caches and labs. Hence Project-GC Stats show Labs as a tab on their individual Profile Stats page. A minority opted out and have 2 accounts = one for the real deal (geocaches) and the other as a sock account for AdLabs only. To reflect the "footwork involved" making valid geocache finds, as opposed to carpark "geoart" AdLab counts.
Until this weekend - for the last two months or so, one can view "Lab Caches" stats on their sock accounts. For me its SurdiVisio_AL. I can see which months or days are low or too high. However if I disable "Lab Caches" for my SurdiVisio account (PjGC paid membership), then the Labs tab disappears from my SV-AL stats. Is this an unintended bug or functioning as designed?