http://www.ecclesia.luxvera.org/Directory-USA.html
Traditional Mass Directory
The label "Traditional Mass Directory" is broader than is warranted; as a matter of their policy, Luxvera excludes all traditional churches, chapels, and other "Mass sites" that acknowledge Francis I as the pope (or until a little more than a year ago, acknowledged Benedict XVI as pope). That's "exclude" as in complete omission, instead of simply distinguishing them with icons signifying disapproval vs. approval. Wouldn't Luxvera thus be excluding all "Mass sites" that adhere to Abp. Lefebvre's official position on the Chair of St. Peter?
It seems to me that Luxvera's criteria fall within CathInfo's term dogmatically sedevacantist. Altho' I typically welcome alternative sources of information, and acknowledge that it's Luxvera's right to choose its criteria for its own "Directory", I also believe it's very important for readers to understand who's eligible--and who's ineligible--for inclusion.
The site does not specify any position on the status of non-sedevacantists and, therefore, the site would not fall within CathInfo's term of "dogmatic sedevacantist". The site is, as you say, free to list whom they choose and no one should consider them the only true source.
Dogmatic sedevacantism, which is forbidden on CathInfo, is the declaration that sedevacantism is a dogmatic fact. Of course, the identity of the pope cannot be declared as a dogmatic fact, though people who accept the heresies of the Conciliar claimants of the Chair of Peter are, by that fact, heretics. On the other hand, dogmatic sedeplenism is the declaration that sedevacantists are outside the Church by that reason alone; this is apparently perfectly acceptable to post this view on CathInfo even though they are, by that reason alone, schismatic.
As for the "importance for readers to understand" whom this website includes and excludes in its directory, the website is very, very clear about this. It is at the very top of the webpage and cannot be missed by anyone who can read English. They do not hide the fact.
Since certain Resistance priests have warned the faithful
not to attend any SSPX "Mass sties" that adhere to Bishop Fellay, I am wondering if you would consider those priests to be off limits on CathInfo.
P.S. I notice the Dimond's website is routinely referenced on CathInfo in spite of the fact that they have anathematized the whole world except themselves.