No. The only point I can see here is that you tried to make Freshdesk look like assholes with your comment "it took several days for @vshankar90 and @mrgirish to stop harassing me on Twitter."

Which they aren't. It would seem that you were exaggerating at best and lying at worst.

Poaching dissatisfied customers of a competitor only proves that they're targeting some low hanging fruit (which is a good thing in this case)

Sorry but that doesn't make any sense. Freshdesk operate in the same field and will naturally have some client overlap. If they spot an unhappy Zendesk user surely it is worth making them aware that there is an alternative that may prove to be a better fit? The opposite would also be valid for unhappy Freshdesk users.