There's a few different ways but the method that seems to find the most posts is by using the search feature: if you click on the search bar, the expanded search box will have an option to search by member but you have to be mindful of the other options (search this thread/forum only) to avoid limiting your search.
Going through posts from someone's profile seems to be limited to only 10 pages/200 posts at this time.
There are two: "elegans" and "chelonoidiselegans" . I have access to email addresses, although I can't give it to you, I can send an email and see if they'd like to contact you. Do a 'search' on the "Members" page "search for member" and take a look at their posts to see which one fits your bill