Actually no. The only company getting ad space with FTB is Creeperhost as they are the sponsor of FTB. Thet launcher team is not paid. The moderators are not paid. The wiki team, social media and mod pack teams are not paid. Slowpoke receives no money for FTB.
The entire team donates hours of their free time to make the launcher and mod pack(s). Slow has had to curtail his streaming to keep up with the demands on his time. The team as a whole devotes hours, days even weeks and months to trying to provide a free launcher and modpack. The average team member logs between 20-40 hours a week of donated time to try and make this something professional and useful.
However since this is not a funded job and no one is paid little things like the jobs that do pay the team's bills can cause slow downs. The reason rude posts are removed is that NO ONE here is paid to do this. They are all volunteers, and why should a volunteer put up with rudeness and disrespect without receiving compensation?