Bangladesh has a population of around
167M people (other sources place a few million less). Out of those, something like 108M are 15 years old, or above. Most
sample size calculators will point to needing around 1K participants in a poll/survey for it to be relatively significant (95% confidence, 3% error) on that population.
The poll on Reddit bears only 127 votes, which should in any case be non-biased, fairly distributed amongst the population (age, education, geography, etc.), being a lone thread on Reddit likely not to comply with these factors, besides falling very short in terms of sample size.
Nothing can thus really be concluded. At best, it can be seen as a hint to further investigate in more adequate sample conditions.