I was going to pass this
thread by... but curiosity got the best of me.
"Plinking & clicking" are terms I've not heard anyone use before. Sizzling and popping... like drops of water on a hot frying pan, yes, but your specific terms, no.
If we're talking about the same thing... then it's normal, and meets the description above. If you have a
new sound, unrelated to the typical sizzling and popping... well, that's a new one on me, and may require an explanation of your build - wire gauge and type, resistance,
mod type and wattage etc etc, to further refine your question.