I have never seen anything like that before.. and I keep dozens of Nerites, with lots of wood both Mopani and Malay driftwood.
If the appearance of their eggs bugs you that much, I'd suggest not having Nerites again. I don't much mind how they look, but some do, and that's ok. Might consider a mystery snail, they are very good algae eaters and glass cleaners, and while females do lay eggs, they have to do it out of water. So the egg clutch is easy to remove if you don't want baby snails hatching.
I'd suggest Rabbit snails, which, if you have both sexes, have live births, and no eggs, but they often eat plants and like to really disturb substrate, so that might not be so hot.
MTS snails don't lay eggs either, and are quite small, and though not as good for glass cleaning as most snails, they do love algae. Also reproduce in large numbers, but most of them will stay in the substrate where you don't see too much of them. They will come to the surface at night or early morning to let their babies go, they are so tiny they float on the water tension.