Show tag in casing with the most counts

[ramonsmits]

At DDDEU the tag #ddd is shown to be popular but it's in #DDD casing most of the time.

[adamralph]

@ramonsmits the problem is that people can use any casing they like for a hashtag. Hashbus does a case insensitive comparison and uses the first case it sees to record the leaderboard row.

The first time that hashtag was used after the Hashbus was switched on, it must have been cased #DDD and that is why it shown like that.

I'm not sure there is a general rule we could apply to alter the casing. I guess the best we could do is have some kind of casing configuration which we manually add to during an event. Alternatively we could record all the casings and take the most popular one at any time, but that means the casing could suddenly change on the leaderboard. Perhaps that's overkill anyway.