This visualization shows when users entered and exited the April 6 wall discussions, based on the first and last time they posted. Each line represents a user.
Excluded from this are those users which only posted on one day. Since there's a lot of these, and creating a line for each of them makes this look really messy, I only note their presence with the number next to the date.
Each user which posts until the end of this collection is represented with a red line. There are probably users in this data that have posted past the bounds of this data collection which are not represented here, but given that this the period of time with some of the most activity, it should still be illustrative of user activity.
2008-03-23 / 6 same day posters
2008-03-24 / 26 same day posters
2008-03-25 / 88 same day posters
2008-03-26 / 90 same day posters
2008-03-27 / 80 same day posters
2008-03-28 / 81 same day posters
2008-03-29 / 125 same day posters
2008-03-30 / 70 same day posters
2008-03-31 / 64 same day posters
2008-04-01 / 65 same day posters
2008-04-02 / 61 same day posters
2008-04-03 / 88 same day posters
2008-04-04 / 65 same day posters
2008-04-05 / 84 same day posters
2008-04-06 / 220 same day posters
2008-04-07 / 210 same day posters
2008-04-08 / 65 same day posters
2008-04-09 / 62 same day posters
2008-04-10 / 44 same day posters
2008-04-11 / 22 same day posters
2008-04-12 / 26 same day posters
2008-04-13 / 26 same day posters
2008-04-14 / 10 same day posters
2008-04-15 / 32 same day posters
2008-04-16 / 16 same day posters
2008-04-17 / 24 same day posters
2008-04-18 / 20 same day posters
2008-04-19 / 21 same day posters
2008-04-20 / 20 same day posters
2008-04-21 / 14 same day posters
2008-04-22 / 16 same day posters
2008-04-23 / 24 same day posters
2008-04-24 / 25 same day posters
2008-04-25 / 18 same day posters
2008-04-26 / 19 same day posters
2008-04-27 / 14 same day posters
2008-04-28 / 22 same day posters
2008-04-29 / 15 same day posters
2008-04-30 / 20 same day posters
2008-05-01 / 22 same day posters
2008-05-02 / 27 same day posters
2008-05-03 / 19 same day posters
2008-05-04 / 46 same day posters
2008-05-05 / 24 same day posters
2008-05-06 / 54 same day posters
2008-05-07 / 24 same day posters
2008-05-08 / 19 same day posters
2008-05-09 / 16 same day posters
2008-05-10 / 12 same day posters
2008-05-11 / 16 same day posters
2008-05-12 / 10 same day posters
2008-05-13 / 9 same day posters
2008-05-14 / 7 same day posters
2008-05-15 / 8 same day posters
2008-05-16 / 8 same day posters
2008-05-17 / 10 same day posters
2008-05-18 / 8 same day posters
2008-05-21 / 21 same day posters
2008-05-24 / 11 same day posters
2008-05-25 / 5 same day posters
2008-05-27 / 9 same day posters
2008-05-28 / 4 same day posters