In work Periodic variable A-F spectral type stars in the northern TESS continuous viewing zone TESS data were investigated within circle R 15 deg around north ecliptic pole in Draco. Authors conclude:
We found clear signs of variability in 3025 of 5923 studied stars (51 %). For 1813 of these 3025 stars, we provide a classification. From the classified stars, 64.5 % are pulsating stars of GDOR and DSCT types and their hybrids.
Indeed, fast checking of some bright stars in the Big Dipper reveals noted above variability of 17 UMa, 36 UMa, 37 UMa, 66 UMa, HD 102328, TYC 3822-243-1... All of them have short periods and very low amplitues about some thousandth parts of magnitude.
So question: is there any sence to find fast low amplidute pulsators and pollute VSX by flow of almoust useless data?
Here are a few quick thoughts. The periods and period stability of even low-amplitude DSCTs might be useful data for analysis by theorists, but only if they are reliably determined. For many of the low-amplitude variables in this TESS study, random ground-based observations may not tell us anything, and such stars would be good targets only for special observing programs. What to include in the VSX is up to its organizers, but observers probably should entirely skip variables which have amplitudes smaller than the expected accuracy of their observations. Thus the TESS DSCT variables with very low amplitudes would be tough targets. The Exoplanet section of course often has to deal with the challenges of observing low-amplitude variables, so low-ampliude stars can be studied to a degree with ground-based observations. One would have to consider what information such studies could add to the TESS findings. I hope that I am correctly understanding your question. Let me know if I am missing your point.