You can read anything on the net but we rely on the opinion of expert doctors so do not pay attention to what people claim they read, or we will be here arguing all day. Some sites use theoretical risks that have never manifested in 40 years of hiv history - how useless is that advice?
No one here ever said that a blowjob (or kissing) can cause HIV. You were advised of the risks in your previous thread, but here they are one last time:
Risks for HIV in adults are:
1) Having unprotected anal or vaginal sex, or
2) sharing intravenous needles.
There is no other activity that you can think of that would put you at risk for HIV.