Well said my friend.
Personally, I think that a preview first and then asking for comments is good, then you can release when people point out errors, for example an incorrect sponsor on a kit. But putting a number of 'positive comments' I'm not so sure.
IMO, asking for comments is good, listening to constructive criticism, and if the majority is happy, then release.
Also, I'm no mod, but I'd say it's different, because the thanks thing is a sort of formal concept, asking for positive comments isn't really abusing the system, because there is no system
It's not just you though dipak, so don't feel bad, you're an excellent mod maker, keep up the great work