
Top 20 busiest threads, number of posts (absolute), 2003 - 2021
01 - Ike - 2008 - 13,504
02 - Fay - 2008 - 13,412
03 - Irma - 2017 - 12,434
04 - Dean - 2007 - 11,653
05 - Matthew - 2016 - 10,909
06 - Gustav - 2008 - 10,390
07 - Irene - 2011 - 9,762
08 - Hermine - 2016 - 9,356
09 - Dorian - 2019 - 9,185
10 - Isaac - 2012 - 8,727
11 - Emily - 2011 - 8,691
12 - Dolly - 2008 - 8,428
13 - Harvey - 2017 - 7,831
14 - Laura - 2020 - 7,829
15 - Ivan - 2004 - 7,020
16 - Isaias - 2020 - 5,665
17 - Wilma - 2005 - 5,625
18 - Chris - 2006 - 5,293
19 - Ida - 2021 - 5,268
20 - Florence - 2018 - 4,992
One thing you immediately notice is that most users here come from Florida. Because any storm headed for Florida, even if it's a TS gets a ton of posts, more than even many MHs. However, this overview could be a bit skewed since there are way more Storm2k users now than f.e. in 2005. So I took the number of Storm2k users for each year and normalized the results with linear scaling to get a fair comparison. So f.e. if in 2004 there would've been 1000 users and now there are 2000 then the number of posts is done times 2. These are the normalized results:
Top 20 busiest threads, number of posts (normalized), 2003 - 2021
01 - Ivan - 2004 - 23,692
02 - Ike - 2008 - 22,121
03 - Fay - 2008 - 21,971
04 - Dean - 2007 - 21,196
05 - Gustav - 2008 - 17,020
06 - Dolly - 2008 - 13,806
07 - Irma - 2017 - 13,553
08 - Irene - 2011 - 12,838
09 - Frances - 2004 - 12,599
10 - Matthew - 2016 - 12,524
11 - Wilma - 2005 - 12,310
12 - Emily - 2011 - 11,430
13 - Isaac - 2012 - 11,326
14 - Hermine - 2016 - 10,741
15 - Chris - 2006 - 10,441
16 - Dorian - 2019 - 9,529
17 - Harvey - 2017 - 8,535
18 - Charley - 2004 - 8,326
19 - Laura - 2020 - 7,917
20 - Bertha - 2008 - 7,257
One thing you notice now is a massive spike in popularity around 2008, since 4 of the top 10 busiest threads are from that year. Notable adbsentees from this normalized top 20 are Sandy (#36 - 5,090 posts normalized), Katrina (#38 - 4,830 posts normalized), Michael (#41 - 4,630 posts normalized) and Emily (#85 - 1,965 posts normalized). Not sure what interesting conclusions you can draw from this, but it was an intruiging investigation.