Given that riding in a group or on a TT bike artificially enhances performance, why doesn't Strava separate those riding in a group into their own category for segments (it already knows when you have ridden with someone else) so that it's more of a level playing field for those riding solo and, in a similar vein, give those on a TT bikes their own category to select...like eBikes? Riders in a group or on a TT bike end up holding a pace at least 20% above their performance on a normal bike, or when riding solo...it doesn't enable performance comparisons against themselves (what's the point in having a PR on a segment if you did it as part of a five-man chaingang or on a TT bike?) or against other riders.