No, you should not be editing files at plugins/bp-template-pack/. During the BP Compatibility process, 6 folders with BP template files were transferred to your active WP theme folder in server – activity, blogs, forums, groups, members, and registration folders.
– Download above-mentioned folders from your WP theme folder in server into your computer.
– Make the revisions in the files specified in Step Three https://codex.buddypress.org/theme-development/wordpress-to-buddypress-theme/
– Upload revised files to server.
– Done.
