I first got the internet and found this site in 2005, I know some people are complete Vinyl Nazi's, some people are easy going and don't mind if your into vinyl or mp3 (myself included in this group) and some people (probably the younger crowd) don't get the whole vinyl thing and just think everyone should share mp3's....
I completely understand the thinking of the vinyl heads that A. it took me 15 years to find out the name of that tune, and B. I paid 175 quid for a copy of it so there no freaking way on God's green earth that i'm giving out MP3's of it willy nilly, especially when they can't be found anywhere on the net !!
I believe that the saying "you know who your friends are" certainly rings true in the subject of mp3 sharing. I have made some great friends through this site who have shared some amazing mp3's with me, some rare mp3's and some 'quite cheap to buy the vinyl but there s no mp3 on the net' mp3's with me. This is remembered and a mutual respect and sharing policy always ensues
an example of this is when a mod on this site sent me a RAR file with all the mixes in WAV form from the vinyl of High Society ! This guy will obviously always receive any rip he ever wants from me if I have it
at the other end of the spectrum, I have sent some people on this site numerous mp3's, only to be properly 'fu**ed right off' when needing one in return, needless to say, they will never get another from me !
what it boils down to is this, people will all have different opinions on the subject of mp3 sharing, it is of course down to personal choice, if you feel this person would of sent you it if needed, then by all means share it, possibly have a quiet word and ask them not to pass it on as you paid serious money for the vinyl and as everybody knows a widely available mp3 can sometimes devalue a vinyl, i'm sure they will understand, plus, if they want it that badly they'll pretty much promise anything to get it
good luck on making your decision, it rests only with you and how you feel about hitting that "send" button