My last 30 pbn sites did nothing. Obviously i was doing something wrong, maybe linking out too fast, i don't know. Domains are good. on 20 of them i was waiting over 6 month hoping they will kick in, but they never did. Are they devalued? What is best use of them now? Do you think removing links, sending on some non-spammy tier 2, wait a month and link to money site again is good idea?