As I am sure you are aware, Net labels (a.k.a. netnames) are a way of joining nets without the need to draw in the wires. This is illustrated in section 4.7 of the EasyEDA Simulation eBook: Components are connected by netnames https://docs.google.com/document/u/1/d/1OWZVVFRAe_2NW3WratpkA_SGuHa5AcRow5ZRfvcoVTU/pub#h.2jxsxqh The description and examples in there are equally valid for non-simulation schematics. The use of net labels is essential to make the `Bus` and `Bus Entry` symbols work in a schematic. The way EasyEDA works at present, the net labels are attached to nets where their attachment node touches them but - unless they are attached to the end of a net - if the net is dragged, they do not drag with the net. Netlabels are overwritten by the placement of a VolProbe (voltage probe). Any netlabel is overwritten by the last placed netlabel on a net so placing a netlable `B` on a net will be overwritten by placing a netlabel `C` which will in turn be overwritten by placing a netlabel `A` on that net. You are arguably correct in that placing more than one net label on the same net should generate a warning simply because it would be helpful but the fact of multiple netlabel placements on a net does not in itself cause any conflict within the netlisting process.