Man, how do you even see someone's post is 10.000th?

Hikineet's post are 'thanks for the chapter' 99% of times.
in the
Search Threads screen
(must be "Search Threads" btw. if it's "Search Everything" it will include profile posts):
Posted by: [username]
Search in forums: All forums
(it will be this by default though. "Search sub-forums as well" will also be left checked (it is checked by default))
Order by: Date
what comes up are 10 pages with 20 posts each, sorted with the most recent at the top of page 1 and the oldest
(oldest out of the 200 total posts across 10 pages, that is,) at the bottom of page 10. at the bottom of page 10 is the "View older results" button, which brings you to the next most recent 200 posts. then it's just doing the math of how many times you need to click the "View older results" button to get to post number 10,000.
for example, since
@justforthelulz has 17,888 posts, the top post of page 1 is post #17,888 , while the bottom post of page 10 is 17,689. click "View older results" once: the top post of page 1 will now be post #17,688 , and the bottom post of page 10 will be post #17,489. click "View older results" like 40 times and you'll eventually get to the set of posts where post #10,000 is.
i was considering doing this for the
@MangaDex account too (currently at a little over 785,000 posts) but
was too lazy didn't have the time. maybe i'll go back and do it one day (also if the user is currently posting it will offset/update the search results which would be very bothersome with how frequently
@MangaDex posts)