I've seen no evidence of overzealous moderation here. I'd even say the rules have relaxed a little in the couple of years I've been here.
It's good to hear the mods are looking at changing the rules for "hot" guns, especially as there are so many Chinese clones available commercially in the UK that exceed forum limits, but the only time I've seen the rule applied is when someone is quite clearly discussing upgrading a gun beyond the limits; I've seen a number of discussions about working with guns already over the limit that have been unhindered.
The mods are only human (well, some