Interesting question.
I plotted IRC activity alongside mailing list activity, attached below. I only have data from 2003: The vreji bot began recording lojban utterances in IRC in December 2002. I see that the the "
lojban timeline" notes "a serious and growing amount of spontaneous communication in Lojban over IRC" as early as 1997.
The level of IRC activity seems to have been relatively flat between 2003 and 2004, but mriste traffic dropped
about 40% that year. IRC activity doesn't really take off until after 2006, and the mriste started to recover after 2007. Since that time, they've both shown an overall positive trend, but fell together in 2011 and 2013.
Based only on these observations, it seems to be more the case that IRC and mriste activity rise and fall together. But perhaps those who participated in the mriste during the early 2000s can speak to whether their own activity shifted away from the mriste and to IRC.
pc, seems to have been the most active during this period, with more than 900 messages in 2001, and about 850 in 2002. After 2002, his activity dropped sharply and in 2007 he posted fewer than 100 messages.
xorxes, you seem to have been the next most active poster during that period, with almost 800 messages in 2001, also dropping sharply after 2002,
and falling below 100 in 2007.
Message counts for lojbab and And seem to follow a similar pattern, recording about 400-500 messages in 2001, and then falling below 100 after 2003.
The only user I have tracked during this period who does not show this pattern is gejyspa, who posted a steady 250-275 messages from 2002-2004, and whose output actually peaked in 2006 with more than 400 messages. Like the others, however, he fell below 100 messages in 2007.
I have been attributing the drop-off in the 2003 mriste -- taken together with the other positive indicators that year -- to the introduction of the BPFK phpBB forum. However, it's worth noting that the forum was retired by the end of that year, and activity did not return to the mriste in 2004. It's certainly possible to argue that the decline began in 2003. The continuance of
peak membership in 2004 somewhat obscurs the fact that fewer than half of LLG members attended
the 2004 annual meeting, and quorum was only possible via proxies.
mi'e la mukti mu'o
Notes: list posts includes the "lojban", "jboske", "lojban-beginners" and "bpfk" lists. For
irc activity, I'm using the number of lojban utterances in
korpora
zei sisku, and dividing by 100 in order to be able to compare movement of that number with the number of list posts. For (LLG)
members and
LLG actions, I multiplied by 100.
LLG actions only includes non-procedural actions, and does not include votes on projects in 2003.