There is/was a seg run going on someday. Since least portals are really really hard, we would have only "barely least portals" category. I mean the strats would be very hard for not much fun. However if you do a run, dear Racingmonster and the community likes it, then yeah, I guess that could become popular.
You could just make it a challenge run instead of a speedrun. The person who is able to beat the game using the least portals has WR. If two people tie, the person who has the lowest time wins.
It was recently discovered that it is possible to set your mouse sensitivity to a value so high that the game considers it infinite, leading to several new glitchy techniques being discovered.
The rules have now been amended to ban these new techniques in both Inbounds No SLA Legacy and Glitchless.