According to bpip, both of them deleted only two of their own posts, so they haven't benn doing this for a long time. You just got them on the right time.
BPIP shows how many of their posts were deleted by
mods, not by themselves.
Posts deleted by moderators: 4 (Rank: >1000)
Posts made per post deleted: 2 (Rank: >1000)
If you check the links I posted above, you will see they are have been doing this for more than 1 month. Actually, Lols601's 3-9 first posts were bumps which were done in the same day, in the same thread.