I don't know how many fans subscribe to this but I believe one of the main contributing factors why Silver is kinda "meh" in terms of overall global appeal and always underestimated in various circles (aside from not being allowed to have leading role in a major console/PC game after 06) is he got dork-a-fied for awhile now making him into this adorable cinnamon roll or gives naive younger brother energy which combined with being labelled the "potential man" for nearly two decades essentially means many don't take him seriously, he is a "who?" side character for normies, Sega consistently tease they've got something planned for Silver on a yearly basis but we know it's nothing more than a teaser and overall compared to the coolness of Sonic or the maturity of Shadow, Silver is kinda a "trust me bro" character when Sega insists he is on their level yet doesn't give him the limelight in a major game post-06 and eventually after repeated years of this, Silver seemly only holds his own or wins against Sonic and/or Shadow in fan animations now (after his debut almost killing Sonic in 06).
Sure he gets epic moments in the comics and now he gets to the fight Time Eater in SSS but seriously is that enough for a character that was initially intended to be a MC on equal standing with Sonic and Shadow in terms of exposure, agency and overall popluarity?
I'm not a Silver fan, so I can't comment if his dorkiness actually enhances his character or not.
Being a Blaze fan, is self enforced pain tho.