Meh, not that it matters overall. I posted UTRs of the ET group earlier in this thread and the range is within norms for the USTA equivs. Ian is UR on UTR because he hasn't played official matches recently, so whatever hold over rating he has for USTA is probably a bit higher than where he is, and that is by his own recounting of having dropped in level and just since last year working to try and get back up. That said, given his match stats against other rated ET folks he falls squarely in a 4.5 range most likely. I don't think it is arbitrary for those wanting to have competitive matches where general leveling is a good indicator. But really, for those rec folks who just like to get out and play with anyone (within reason) then yeah, a good time can be had on court hitting around with most folks.
Interestingly, again going back to the video in my first post, Andrey was a very good college player, as well as the opponent here, so 5.0/5.5 is in line with that. BUT...if you were to look up recent stats you might be surprised. Not that they couldn't compete at the higher level, but they are not where they were in college, and USTA continues to promote if you played Dx college level you automatically equate to NTRP 5+ level, which isn't always true. A great example is Karue Sells again, who peaked at 15+UTR, which is solid ATP pro level, but currently is 12.5ish, so a considerable drop. And let's not even through out that age factor.
As far as valuing opinions, criticisms, etc, I appreciate people being considerate enough to take time and comment. I think there can be value from anyone, but also listen a bit more intently to those I have seen play and have a better understanding where they are coming from. Obviously high level players allow me to gain from their insights to playing in ways I haven't experienced yet, so again I might listen more intently. But I don't summarily dismiss anyone. Well, except maybe TTPS, though I did have some wicked good conversations a few items with him, so long as he wasn't just trolling or asking a statement instead of a question.
Anyway...cheers.
EDIT: lol. Too funny, Ian just did a video a few hours ago on having to SR because his hold over rating expired. So pretty much what I guessed earlier and said again above.