<p>During each of the last five days, some of my answers - most being
quite old - were upvoted within a short lapse of time. More precisely:
5, 3, 3, 3, 3 answers were upvoted within a few minutes for each
day.</p>

<p>It is always pleasant to have upvotes, and some of these answers could
be considered as underrated e.g, <a href="https://stats.stackexchange.com/a/199343/10479">this
one</a> which was upvoted
for the first time. Yet this seems quite strange. May I fear to have
met a robot fan?</p>
