If you're going to a p2p deal with someone unknown then that really is, since it's a matter of trust. There are
escrows on this forum, though they accept depends on what kind of transaction you're dealing with, either digital or non-digital product purchase, trades (crypto to crypto) and etc.
It is good to use escrow service of a reputable member on this forum but your list needs update I think, I was unable to see Hhampuz among the names on the list. There is another one I know about, click the link I provided below to see the lists of reputable members that provide escrow on this forum.
https://bitcointalk.org/index.php?topic=2439910.0