Are sites that recently lost traffic considered bad neighborhood?

[BeytzNet]

Hi,

While searching for co-operations and guest blogging opportunities I found several sites that look legit and that lost all SE traffic (according to various tools such as SEMRush).

By legit I mean sites that have PR3 and up. Have many solid looking articles and that the articles are on the site's subject and that the articles do not necessarily point to other sites with exact match anchors.

Should I post in these sites or are they probably penalized and therefore being there put me at risk?

Thanks

[SEO5Team]

My suggestion would be to review the quality of the content on the site. If the site does host good quality content, then i would recommend submitting your articles on them. If they look spammy and dont really have meaningful content posted that the visitors can benefit from, i'd stay away from it.