obsolete regulation of postsynaptic neurotransmitter receptor activity https://github.com/geneontology/go-ontology/issues/22455 true OBSOLETE. Any process that modulates the frequency, rate or extent of neurotransmitter receptor activity involved in synaptic transmission. Modulation may be via an effect on ligand affinity, or effector function such as ion selectivity or pore opening/closing in ionotropic receptors. This term was obsoleted because it represents a molecular function. Consider molecular function regulator activity ; GO:0098772 or a child. GO:0098962 biological_process