Honestly I'm agree. But considering indeed the negative parts, this thing could be limited only to wild systems like Omicrons, Omegas, Taus and Sigmas and not involving the Houses or other mega-corporation (IMG, GMG...). This feature could be useful consequently to independent forces, maybe different "clans" (Like the old Freelancer groups, [FL-ER], {AFC}, or "Unofficial" authorities like Core, Auxo...). Since there will be something to do like attack/protect structures, there will be more activity and seriety to manage a faction and it could also avoid to create too many factions inviting players to join to already existent ones. RP? Sincerely it could also be a good idea to promote it, since the diplomacy that can come to avoid to be costantly attacked by factions.
Edit: To avoid boring grinding, the requirements could be changed in "Minimun number of RP posts to promote that" and "Minimum number of Events to promote that"