At coin history, the steam id shown for steam trades is always your own steam id.

Steam auth still doesn't work for the wiki, even though there are, in fact, working instances of mediawiki integrated with steam login. (example).

Steam login is sometimes weird with the support website (it requests login, or it just shows a blank page).

Steam inventory history (must be logged in to see, link will correct itself if logged in) doesn't work correctly--I frequently see a record that a trade was done, but no details of what was traded. This combined with issue #1 means that I can't tell how much ce I paid a certain person for something.