Firstly, not everyone using social media is gossiping. And even if they were, it is their democratic right to do so. Trying to tax a populace out of a social habit is mischievous at best, but dictatorial at worst.
Secondly, suppressing the use of modern technologies reduces the competitive edge of that population.
Finally, as Ugandans are already doing, one can use technical tools called Virtual Private Networks (VPNs) to access social media sites without having to pay the misplaced tax.
Full article: Daily Nation