Your edit log very very strongly suggests otherwise Though dynamically assigned IP addresses can be assigned to different clients of the same ISP over time it would not change from you to someone else and then back to you in the space of two minutes as is evidenced by your edits Additionally your Talk page history strongly suggests that you have a static address As it extremely unlikely that someone would bother to specifically fake an IP address using a proxy just to make you look bad here the only other possibility could be that someone else in the same room as you made the change in the space of two minutes while you weren t looking which is also unlikely There is very little room left for credibility