What is the current state of the lumper/splitter debate?

[dlewan]

The title says it all.

I haven't been deeply involved in orchid society for almost 30 years and things in and about taxonomy have clearly changed.

S. coccinea and S. cernua are now Cattleyas. Dockrullia has been absorbed back into Dendrobium. I've noticed lots of other stuff too..

Have genomic advances affected the definitions of genus and species? Is there more agreement about classification because of it? (The days of the gentleman-botonist are clearly over.) Who's the current best authority? Kew's POWO seems like a good candidate. What about other taxonomic groupings? Subgenera? Subspecies? Does rank-based taxonomy have a foothold? Academically? In the hobby? Has the web-of-life idea entered the picture?